<SEC-DOCUMENT>0001193125-16-758285.txt : 20161103
<SEC-HEADER>0001193125-16-758285.hdr.sgml : 20161103
<ACCEPTANCE-DATETIME>20161103101002
ACCESSION NUMBER:		0001193125-16-758285
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20161103
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20161103
DATE AS OF CHANGE:		20161103

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LENNOX INTERNATIONAL INC
		CENTRAL INDEX KEY:			0001069202
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
		IRS NUMBER:				420991521
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15149
		FILM NUMBER:		161970460

	BUSINESS ADDRESS:	
		STREET 1:		2140 LAKE PARK BLVD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
		BUSINESS PHONE:		972-497-5000

	MAIL ADDRESS:	
		STREET 1:		2140 LAKE PARK BLVD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d284193d8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
<HTML><HEAD>
<TITLE>Form 8-K</TITLE>
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 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM 8-K
</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant
to Section 13 or 15(d) </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of report (date of earliest event reported): November 3, 2016 </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>LENNOX INTERNATIONAL INC. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of registrant as specified in its charter) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>001-15149</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>42-0991521</B></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(IRS Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>2140 Lake Park Blvd. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Richardson, Texas 75080 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Address of principal executive offices, including zip code) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code: (972) 497-5000&nbsp; </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Not Applicable </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Former
name or former address, if changed since last report) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box below
if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (<I>see</I> General Instruction A.2. below): </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) </TD></TR></TABLE> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item 1.01 Entry into a Material Definitive Agreement. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">On October 25, 2016, Lennox International Inc. (the &#147;Company&#148;) entered into an Underwriting Agreement (the &#147;Underwriting
Agreement&#148;) with J.P. Morgan Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, under which the Company agreed to issue and sell to the several underwriters $350,000,000 aggregate
principal amount of the Company&#146;s 3.000% Notes due 2023 (the &#147;Notes&#148;).&nbsp;The Company issued the Notes against payment therefor on November 3, 2016. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Notes were issued pursuant to the Indenture, dated as of May 3, 2010 (as amended, supplemented or otherwise modified to the date hereof,
the &#147;Base Indenture&#148;), among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee (the &#147;Trustee&#148;), as further supplemented by the Sixth Supplemental Indenture, dated as of November 3, 2016 (the
&#147;Supplemental Indenture&#148; and, together with the Base Indenture, the &#147;Indenture&#148;), among the Company, the guarantors party thereto (the &#147;Guarantors&#148;) and the Trustee. The Notes are guaranteed on a senior unsecured basis
by the Guarantors.</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Company will pay interest on the Notes on each of May&nbsp;15 and November&nbsp;15, beginning on May 15,
2017.&nbsp;The Notes will mature on November 15, 2023.&nbsp;Before September 15, 2023, the Company may, at any time, redeem the Notes at a redemption price equal to the greater of 100% of the principal amount and the &#147;make whole&#148; price
described in the Indenture, plus accrued and unpaid interest.&nbsp;On or after September 15, 2023, the Company may redeem the Notes at par, plus accrued and unpaid interest. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Company will use the net proceeds from the sale of the Notes for general corporate purposes, which may include repurchasing shares of the
Company&#146;s common stock or repaying indebtedness. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of both (a)&nbsp;a change of control of the Company and
(b)&nbsp;within a specified period in relation to the change of control, a downgrade of the Notes by either Moody&#146;s Investors Service, Inc. or Standard &amp; Poor&#146;s Ratings Services to a rating below an investment grade rating, the Company
may be required to purchase some or all of the Notes at a price equal to 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Notes are subject to the covenants in the Indenture, which include limitations on liens, limitations on sale and leaseback transactions
and limitations on mergers, consolidations and transfers of substantially all of the Company&#146;s assets. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Indenture contains
customary events of default, including:&nbsp;(a)&nbsp;failure to pay principal or premium, if any, on they Notes when due; (b)&nbsp;failure to pay any interest on the Notes for 30&nbsp;days after the interest becomes due; (c) failure to perform, or
breach of, any other covenant in the Indenture for 90 days after written notice thereof; (d) the guarantee of any Guarantor ceases to be in effect and enforceable in accordance with its terms; (e)&nbsp;acceleration of at least $75 million of
indebtedness of the Company or any Guarantor, as the result of an event of default, as defined in an indenture or instrument under which such indebtedness is outstanding, if such acceleration is not rescinded or annulled within 30 days after notice
thereof has been given; and (f)&nbsp;specified events of bankruptcy, insolvency or reorganization involving the Company or any Guarantor. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The foregoing summary of the Base Indenture, the Supplemental Indenture and the Notes is qualified in its entirety by reference to the full
text of the Base Indenture, the Supplemental Indenture and the Notes, which are included as Exhibit 4.1, Exhibit&nbsp;4.2 and Exhibit 4.3 hereto and are incorporated herein by reference. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">In addition, in connection with the public offering of the Notes, the Company is filing the exhibits to this Current Report on Form 8-K for
the purpose of incorporating such exhibits in its Registration Statement on Form S-3 (Reg. No. 333-214162).&nbsp;The exhibits to this Current Report on Form 8-K are hereby incorporated into such Registration Statement by reference. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The information set forth above under Item 1.01 is incorporated in this Item 2.03 by reference. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item 9.01 Financial Statements and Exhibits. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>(d) Exhibits. </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:35.65pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT<BR>NUMBER</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:55.65pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>DESCRIPTION</B></P></TD></TR>


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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Indenture, dated as of May 3, 2010, between the Company and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to the Company&#146;s Post-Effective Amendment No. 1 to Registration Statement on S-3
(Registration No. 333-155796)).</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Sixth Supplemental Indenture among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee.</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.3</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Form of 3.000% Notes due 2023 (included in Exhibit 4.2 hereof).</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Opinion of Jones Day.</TD></TR>
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<TD VALIGN="top" NOWRAP>23.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Consent of Jones Day (included in Exhibit 5.1 hereof).</TD></TR>
</TABLE>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="5">LENNOX INTERNATIONAL INC.</TD></TR>
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<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ John D. Torres</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">John D. Torres</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Executive Vice President, Chief Legal Officer and Corporate Secretary</TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:&nbsp;November 3, 2016 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT INDEX </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="90%"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:35.65pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT<BR>NUMBER</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:55.65pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>DESCRIPTION</B></P></TD></TR>


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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Indenture, dated as of May 3, 2010, between the Company and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to the Company&#146;s Post-Effective Amendment No. 1 to Registration Statement on S-3
(Registration No. 333-155796)).</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Sixth Supplemental Indenture among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.3</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Form of 3.000% Notes due 2023 (included in Exhibit 4.2 hereof).</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Opinion of Jones Day.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Consent of Jones Day (included in Exhibit 5.1 hereof).</TD></TR>
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<DOCUMENT>
<TYPE>EX-4.2
<SEQUENCE>2
<FILENAME>d284193dex42.htm
<DESCRIPTION>EX-4.2
<TEXT>
<HTML><HEAD>
<TITLE>EX-4.2</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 4.2 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Execution Version </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIXTH SUPPLEMENTAL INDENTURE
</B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">among </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>LENNOX
INTERNATIONAL INC., </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">as Issuer </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EACH OF THE GUARANTORS PARTY HERETO, </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">as Guarantors </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>U.S. BANK NATIONAL ASSOCIATION, </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Dated as of
November&nbsp;3, 2016 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Supplemental to Indenture for Senior Debt Securities </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Dated as of May&nbsp;3, 2010 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3.000% Notes due 2023 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>TABLE OF CONTENTS </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="86%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">P<SMALL>AGE</SMALL></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">SCOPE OF SUPPLEMENTAL INDENTURE; GENERAL</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;1.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Scope of Supplemental Indenture; General</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;1.02.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Terms of Notes</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">2</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;1.03.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Amendments to Base Indenture</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">CERTAIN DEFINITIONS</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;2.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Certain Definitions</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">3</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;2.02.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Rules of Construction</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">9</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 3</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">COVENANTS</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;3.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Change of Control Triggering Event</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">9</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;3.02.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Limitations on Liens</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">10</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;3.03.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Limitations on Sale and Leaseback Transactions</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">11</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;3.04.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Future Guarantors</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;3.05.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Applicability of Covenants Contained in the Base Indenture</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 4</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">THE NOTES</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;4.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Form of Notes</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;4.02.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Depositary</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 5</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">EVENTS OF DEFAULT</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;5.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Events of Default</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 6</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">REDEMPTION</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;6.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Optional Redemption</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">13</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;6.02.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Optional Redemption by Company</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">13</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;6.03.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Applicability of Sections of the Base Indenture</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 7</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">DEFEASANCE</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section&nbsp;7.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Defeasance</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">i </P>


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<TD WIDTH="86%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
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<TD></TD>
<TD></TD></TR>

<TR STYLE="font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">P<SMALL>AGE</SMALL></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 8</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">SUBSIDIARY GUARANTEES</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Section 8.01.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Guarantees</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">14</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.02.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Continuing Guarantee</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">15</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.03.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Release of Guarantee</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">15</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.04.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Notation Not Required</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.05.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Waiver of Subrogation</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.06.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Execution and Delivery of Guarantees</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.07.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Notices</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">ARTICLE 9</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">MISCELLANEOUS</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.01.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Ratification of Base Indenture</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">16</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.02.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Trustee Makes No Representation; Trustee&#146;s Rights and Duties</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.03.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>New York Law to Govern</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.04.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Counterparts</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.05.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"><I>Effect of Headings</I></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">17</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">EXHIBIT A.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Form of Note</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">EXHIBIT B.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Form of Supplemental Indenture in Respect of Guarantees</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ii </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>SIXTH SUPPLEMENTAL INDENTURE, dated as of November&nbsp;3, 2016 (this &#147;<B>Sixth
Supplemental Indenture</B>&#148;), by and among LENNOX INTERNATIONAL INC., a Delaware corporation (the &#147;<B>Company</B>&#148;), the GUARANTORS (as defined herein) and U.S. BANK NATIONAL ASSOCIATION, as trustee (as defined in the Indenture
referred to below, the &#147;<B>Trustee</B>&#148;), to the Indenture, dated as of May&nbsp;3, 2010 (the &#147;<B>Base Indenture</B>&#148; and, as supplemented by the First Supplemental Indenture, dated as of May&nbsp;6, 2010, the Second Supplemental
Indenture, dated as of March&nbsp;28, 2011, the Third Supplemental Indenture, dated as of October&nbsp;27, 2011, the Fourth Supplemental Indenture, dated as of December&nbsp;10, 2013, the Fifth Supplemental Indenture, dated as of August&nbsp;30,
2016, and this Sixth Supplemental Indenture, the &#147;<B>Indenture</B>&#148;), by and between the Company and the Trustee.<B> </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">RECITALS: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>WHEREAS, the
Company has duly authorized the execution and delivery of the Base Indenture to provide for the issuance from time to time of the Company&#146;s unsecured debentures, notes, or other evidences of indebtedness (as defined in the Indenture, the
&#147;<B>Securities</B>&#148;), to be issued in one or more series;<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, Section&nbsp;8.01 of the Base Indenture permits the
Company and the Trustee to enter into indentures supplemental to the Base Indenture to establish the form and terms of any series of Securities as provided by Sections 2.01 and 2.03 of the Base Indenture; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>WHEREAS, the Company desires and has requested the Trustee to join them in the execution and delivery of this Sixth Supplemental
Indenture in order to establish and provide for the issuance by the Company of a new series of Securities designated as its 3.000% Notes due 2023 (the &#147;<B>Notes</B>&#148;), on the terms set forth herein;<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Company now wishes to issue Notes in an initial aggregate principal amount of $350,000,000; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the conditions set forth in the Indenture for the execution and delivery of this Sixth Supplemental Indenture have been complied
with; and </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, all things necessary to make this Sixth Supplemental Indenture a valid agreement of the Company, the Guarantors and
the Trustee, in accordance with its terms, and a valid supplement to the Base Indenture have been done; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">NOW, THEREFORE, THIS SIXTH
SUPPLEMENTAL INDENTURE WITNESSETH: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In consideration of the purchase and acceptance of the Notes by the Holders thereof, the Company and
the Guarantors mutually covenant and agree with the Trustee, for the equal and ratable benefit of the Holders of the Notes, as follows: </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 1 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCOPE OF SUPPLEMENTAL
INDENTURE; GENERAL </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.01. <I>Scope of Supplemental Indenture; General</I>. This Sixth Supplemental Indenture supplements and,
to the extent inconsistent therewith, replaces the provisions of the Base Indenture, to which provisions reference is hereby made. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
changes, modifications and supplements to the Base Indenture effected by this Sixth Supplemental Indenture shall be applicable only with respect to, and govern the terms of, the Notes </P>

<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
(which shall be initially in the aggregate principal amount of $350,000,000) and shall not apply to any other Securities that have been or may be issued under the Indenture unless a supplemental
indenture with respect to such other Securities specifically incorporates such changes, modifications and supplements. Pursuant to this Sixth Supplemental Indenture, there is hereby created and designated a series of Securities under the Indenture
entitled &#147;3.000% Notes due 2023.&#148; The Notes shall be in the form of <U>Exhibit A</U> hereto, the terms of which are incorporated herein by reference. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All Notes issued under this Sixth Supplemental Indenture shall vote and consent together on all matters as one class, including without
limitation on waivers and amendments, and no Holder of Notes shall have the right to vote or consent as a separate class from other Holders on any matter except matters which affect such Holder only. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.02. <I>Terms of Notes</I>. The information applicable to the Notes required pursuant to Section&nbsp;2.03 of the Base Indenture
is as follows: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) the title of the Notes shall be &#147;3.000% Notes due 2023&#148;; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) not applicable; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) the
initial aggregate principal amount of the Notes shall be $350,000,000; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) the Notes shall be issuable in Dollars; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) principal shall be payable as set forth in the form of Note; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) the rate at which the Notes shall bear interest and interest payment and record dates shall be as set forth in the form of Note; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) the place where the principal of and any interest on the Notes shall be payable shall be as set forth in the Base Indenture; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) the Notes shall be subject to optional redemption as set forth in Article 6 below; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) not applicable; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j) the
Notes shall be issuable in minimum denominations of $2,000 and integral multiples of $1,000 above that amount; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k) not applicable; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(l) payment of the principal and interest on the Notes shall be made in Dollars; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(m) not applicable; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(n) not
applicable; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(o) the Notes may be defeased as set forth in Article 7 below; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(p) not applicable; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(q) the
Notes shall be issuable as Global Securities; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(r) U.S. Bank National Association initially shall serve as the trustee, paying agent, registrar
and custodian with respect to the Notes; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(s) the events of default set forth in Article 5 below and the covenants set forth in Article 3
below shall be applicable to the Notes; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(t) not applicable; and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(u) not applicable. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.03. <I>Amendments to Base Indenture</I>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) Article 2 of the Base Indenture shall be amended by replacing the final paragraph of Section&nbsp;2.03 thereof with the following: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;The Issuer may from time to time, without notice to or the consent of the holders of any series of Securities, create and issue further
Securities of any such series ranking equally with the Securities of such series in all respects (or in all respects other than the payment of interest accruing prior to the issue date of such further Securities or except for the first payment of
interest following the issue date of such further Securities); provided that such further Securities must be part of the same issue as such series for U.S. federal income tax purposes. Such further Securities may be consolidated and form a single
series with the Securities of such series and have the same terms as to status, redemption or otherwise as the Securities of such series.&#148; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) Article 10 of the Base Indenture shall be amended by replacing Section&nbsp;10.01(b)(4) thereof in its entirety with the following: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;the Issuer shall have delivered to the Trustee an Opinion of Counsel from a nationally recognized counsel acceptable to the Trustee or a
private letter ruling issued by the United States Internal Revenue Service to the effect that the beneficial owners of the Securities will not recognize income, gain or loss for United States Federal income tax purposes as a result of the
Issuer&#146;s exercise of its option under this Section&nbsp;10.01(b) and will be subject to United States Federal income tax on the same amount and in the same manner and at the same times as would have been the case if such option had not been
exercised;&#148; </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 2 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTAIN DEFINITIONS </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.01. <I>Certain Definitions</I>. The following definitions shall apply to the Notes. Capitalized terms used but not defined
herein have the meanings ascribed to such terms in the Base Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Attributable Debt</B>&#148; with regard to a Sale
and Leaseback Transaction with respect to any Principal Property means, at the time of determination, the present value of the total net amount of rent required to be paid under the lease during the remaining term thereof (including any period for
which the lease has been extended), discounted at the rate of interest set forth or implicit in the terms of the lease (or, if not practicable to determine the rate, the weighted average interest rate per annum borne by the Notes then outstanding)
compounded semi-annually. In the case of any lease that is terminable by the lessee upon the payment of a penalty, the net amount of rent shall be the lesser of (x)&nbsp;the net amount determined assuming termination upon the first date the lease
may be terminated (in which case the net amount shall also include the amount of the penalty, but shall not include any rent that would be required to be paid under the lease subsequent to the first date upon which it may be so terminated) or
(y)&nbsp;the net amount determined assuming no such termination.<B> </B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Capital Lease Obligations</B>&#148; of any Person means the obligations of such
Person to pay rent or other amounts under any lease of (or other arrangement conveying the right to use) real or personal property, or a combination thereof, which obligations are required to be classified and accounted for as capital leases on a
balance sheet of such Person under GAAP, and the amount of such obligations shall be the capitalized amount thereof determined in accordance with GAAP.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Change of Control</B>&#148; means the occurrence of any of the following after the Issue Date: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a
series of related transactions, of all or substantially all of the Company&#146;s assets and the assets of the Company&#146;s subsidiaries taken as a whole to any &#147;person&#148; or &#147;group&#148; (as those terms are used in
Section&nbsp;13(d)(3) of the Exchange Act) other than to the Company or one of its subsidiaries; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) the consummation of any transaction
(including, without limitation, any merger or consolidation) that results in any &#147;person&#148; or &#147;group&#148; (as those terms are used in Section&nbsp;13(d)(3) of the Exchange Act, provided that an employee of the Company or any of the
Company&#146;s subsidiaries for whom shares are held under an employee stock ownership, employee retirement, employee savings or similar plan and whose shares are voted in accordance with the instructions of such employee is not a member of a
&#147;group&#148; solely because such employee&#146;s shares are held by a trustee under said plan) becoming the &#147;beneficial owner&#148; (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of Voting Stock
representing more than 50% of the voting power of the Company&#146;s outstanding Voting Stock or of the Voting Stock of any of the Company&#146;s direct or indirect parent companies; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) the Company consolidates with, or merges with or into, any Person, or any Person consolidates with, or merges with or into, the Company,
in any such event pursuant to a transaction in which any of the Company&#146;s outstanding Voting Stock or the Voting Stock of such other Person is converted into or exchanged for cash, securities or other property, other than any such transaction
in which the Company&#146;s Voting Stock outstanding immediately prior to such transaction constitutes, or is converted into or exchanged for, Voting Stock representing more than 50% of the voting power of the Voting Stock of the surviving Person
immediately after giving effect to such transaction; or </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) the adoption of a plan relating to the Company&#146;s liquidation or
dissolution. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, a transaction shall not be deemed to involve a Change of Control solely because the Company
becomes a direct or indirect wholly owned subsidiary of a holding company if the direct or indirect holders of the Voting Stock of such holding company immediately following that transaction are substantially the same as the holders of the
Company&#146;s Voting Stock immediately prior to that transaction. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Change of Control Offer</B>&#148; has the meaning ascribed to
such term in Section 3.01 of this Sixth Supplemental Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Change of Control Payment</B>&#148; has the meaning ascribed to
such term in Section 3.01 of this Sixth Supplemental Indenture. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Change of Control Payment Date</B>&#148; has the meaning ascribed to such term in
Section 3.01 of this Sixth Supplemental Indenture.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Change of Control Triggering Event</B>&#148; means, with
respect to the Notes, (1)&nbsp;the rating of the Notes is lowered by any of the Rating Agencies on any date during the period (the &#147;<B>Trigger Period</B>&#148;) commencing on the earlier of (a)&nbsp;the occurrence of a Change of Control and
(b)&nbsp;the first public announcement by the Company of any Change of Control (or pending Change of Control), and ending 60 days following consummation of such Change of Control (which Trigger Period shall be extended following consummation of a
Change of Control for so long as any of the Rating Agencies has publicly announced that it is considering a possible ratings change), and (2)&nbsp;the Notes are rated below Investment Grade by each of the Rating Agencies on any day during the
Trigger Period; provided that a Change of Control Trigger Event shall not be deemed to have occurred in respect of a particular Change of Control if the Rating Agency making the reduction in rating does not publicly announce or confirm or inform the
Trustee at the Company&#146;s request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the Change of Control.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, no Change of Control Triggering Event shall be deemed to have occurred in connection with any particular Change
of Control unless and until such Change of Control has actually been consummated. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Comparable Treasury Issue</B>&#148;
means the United States Treasury security selected by an Independent Investment Banker that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of
comparable maturity to the remaining term of the Notes.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to
any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (2)&nbsp;if the Company obtains fewer than four
such Reference Treasury Dealer Quotations, the average of all Reference Treasury Dealer Quotations obtained.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Consolidated Net Tangible Assets</B>&#148; means the aggregate amount of assets (less applicable reserves and other properly
deductible items) after deducting therefrom (a)&nbsp;all current liabilities (excluding any indebtedness for money borrowed having a maturity of less than 12 months from the date of the Company&#146;s most recent consolidated balance sheet but which
by its terms is renewable or extendable beyond 12 months from such date at the Company&#146;s option) and (b)&nbsp;all goodwill, trade names, patents, unamortized debt discount and expense and any other like intangibles, all as set forth on the
Company&#146;s most recent consolidated balance sheet and determined in accordance with GAAP.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Credit
Agreement</B>&#148; means the Sixth Amended and Restated Credit Facility Agreement, dated August&nbsp;30, 2016, among the Company, JPMorgan Chase Bank, N.A., as administrative agent, Bank of America, N.A., Wells Fargo Bank, N.A. and The Bank of
Tokyo-Mitsubishi UFJ, LTD., as syndication agents, and the lenders party thereto, as it may be amended, supplemented or otherwise modified from time to time.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>DTC</B>&#148; has the meaning ascribed to such term in Section 4.02 of this Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Event of Default</B>&#148; means any event specified as such in Section 5.01 of this Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Exchange Act</B>&#148; means the Securities Exchange Act of 1934, as amended. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Excluded Foreign Subsidiary</B>&#148; means any Foreign Subsidiary in respect of which
guaranteeing the Notes would result in an adverse tax consequence to the Company. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Foreign Subsidiary</B>&#148; means any
subsidiary that is organized under the laws of a jurisdiction other than the United States of America or any State thereof or the District of Columbia. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>GAAP</B>&#148; means generally accepted accounting principles as in effect from time to time in the United States. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Global Note</B>&#148; has the meaning ascribed to such term in Section 4.01 of this Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Global Note Holder</B>&#148; has the meaning ascribed to such term in Section 4.02 of this Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Guarantee</B>&#148; has the meaning ascribed to such term in Section 8.01 of this Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Guarantors</B>&#148; means, initially, Advanced Distributor Products LLC, a Delaware limited liability company, Allied Air
Enterprises LLC, a Delaware limited liability company, Heatcraft Inc., a Delaware corporation, Heatcraft Refrigeration Products LLC, a Delaware limited liability company, Lennox Global Ltd., a Delaware corporation, Lennox Industries Inc., a Delaware
corporation, Lennox National Account Services, LLC, a Florida limited liability company, LGL Australia (US) Inc., a Delaware corporation and LGL Europe Holding Co., a Delaware corporation. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by the Company. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Investment Grade</B>&#148; means a rating of Baa3 or better by Moody&#146;s (or its equivalent under any successor rating category of
Moody&#146;s) or a rating of BBB- or better by S&amp;P (or its equivalent under any successor rating category of S&amp;P), and the equivalent investment grade credit rating from any replacement rating agency or rating agencies selected by the
Company under the circumstances permitting the Company to select a replacement agency and in the manner for selecting a replacement agency, in each case as set forth in the definition of &#147;Rating Agency.&#148; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Issue Date</B>&#148; means November&nbsp;3, 2016. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Liens</B>&#148; means, with respect to any Person, any mortgage, lien, pledge, charge, security interest or other encumbrance, or any
interest or title of any vendor, lessor, lender or other secured party to or of such Person under any conditional sale or other title retention agreement or capital lease, upon or with respect to any property or asset of such Person. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Material Subsidiary</B>&#148; means each Guarantor and any other subsidiary of the Company (except LPAC Corp. and any Excluded
Foreign Subsidiary) (i)&nbsp;the book value (determined in accordance with GAAP) of whose total assets equals or exceeds ten percent (10%)&nbsp;of the book value of the Company&#146;s consolidated total assets as determined as of the last day of the
Company&#146;s most recent fiscal quarter or (ii)&nbsp;which owns a Principal Property. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Moody&#146;s</B>&#148; means
Moody&#146;s Investors Service, Inc. and its successors. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Nonrecourse Obligation</B>&#148; means indebtedness for borrowed money or lease payment
obligations related to (i)&nbsp;the acquisition of a Principal Property not previously owned by the Company or any subsidiary or (ii)&nbsp;the financing of a project involving the development or expansion of any Principal Property owned by the
Company or any subsidiary, as to which the obligee with respect to such indebtedness or obligation has no recourse to the Company or any subsidiary or any of its or its subsidiaries&#146; assets other than such Principal Property so acquired,
developed or expanded, as applicable. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Notes</B>&#148; has the meaning ascribed to it in the preamble of this Sixth Supplemental
Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Permitted Credit Agreement Liens</B>&#148; means: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) any Lien on the Company&#146;s headquarters building located at 2140 Lake Park Blvd., Richardson, Texas; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) any Lien existing on any fixed or capital asset (including equipment) prior to the acquisition thereof by the Company or any of its
subsidiaries or existing on any property or asset of any Person that becomes a subsidiary after the date hereof prior to the time such Person becomes a subsidiary; provided that (i)&nbsp;such Lien is not created in contemplation of or in connection
with such acquisition or such Person becoming a subsidiary, as the case may be, (ii)&nbsp;such Lien shall not apply to any other of the Company&#146;s assets or of the assets of any of the Company&#146;s subsidiaries, (iii)&nbsp;such Lien shall
secure only those obligations which it secures on the date of such acquisition or the date such Person becomes a subsidiary, as the case may be, and extensions, renewals and replacements thereof that do not increase the outstanding principal amount
thereof, and (iv)&nbsp;the aggregate principal amount of all indebtedness secured by Liens permitted by this clause shall not at any time exceed $50,000,000; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) Liens on fixed or capital assets (including equipment), or other assets acquired with purchase money indebtedness, in each case acquired,
constructed or improved by the Company or any of its subsidiaries; provided that (i)&nbsp;such security interests secured indebtedness permitted by the Credit Agreement, including Capital Lease Obligations, (ii)&nbsp;such security interests and the
indebtedness secured thereby are incurred prior to or within 90 days after such acquisition or the completion of such construction or improvement, (iii)&nbsp;the indebtedness secured thereby does not exceed 100% of the cost of acquiring,
constructing or improving such fixed or capital assets and (iv)&nbsp;such security interests shall not apply to any other of the Company&#146;s property or assets or of any of the Company&#146;s subsidiaries; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) Liens on (i)&nbsp;the Company&#146;s property or the property of any of the Company&#146;s subsidiaries securing indebtedness owing to the
Company or a Guarantor permitted by the Credit Agreement and (ii)&nbsp;property of any subsidiary that is not a Material Subsidiary securing Indebtedness owing to any other subsidiary that is not a Material Subsidiary permitted by the Credit
Agreement; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) Liens securing indebtedness of Foreign Subsidiaries permitted by the Credit Agreement provided that such Liens encumber
only assets of the Foreign Subsidiaries; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) Liens granted in connection with any Receivable Securitization Facility permitted under the
Credit Agreement on the receivables sold pursuant thereto (together with all collections and other proceeds thereof and any collateral securing the payment thereof), all right, title and interest in and to the lockboxes and other collection accounts
in which proceeds of such receivables are deposited, the rights under the documents executed in connection with such Receivable Securitization Facility and in the equity interests issued by any special purpose entity organized to purchase the
receivables thereunder; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) Liens on cash securing indebtedness arising in connection with Swap Agreements permitted by the Credit
Agreement; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) Liens on materials, supplies, components or equipment acquired with purchase money
indebtedness permitted to be incurred under the Credit Agreement, so long as (i)&nbsp;such security interests and the indebtedness secured thereby are incurred prior to or within 90 days after such acquisition, (ii)&nbsp;the indebtedness secured
thereby does not exceed 100% of the cost of acquiring such materials, supplies, components or equipment and (iii)&nbsp;such security interests shall not apply to any other of the Company&#146;s property or assets or the property or assets of any of
the Company&#146;s subsidiaries; and </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) customary call, buy-sell or similar rights negotiated on an arm&#146;s length basis and granted
to third-party joint venture partners in respect of equity interests of the applicable joint venture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Person</B>&#148; means any
individual, corporation, partnership, limited liability company, business trust, association, joint-stock company, joint venture, trust, incorporated or unincorporated organization or government or any agency or political subdivision thereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Primary Treasury Dealer</B>&#148; means a primary U.S. government securities dealer in the United States. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Principal Property</B>&#148; means any manufacturing plant, warehouse, office building or parcel of real property, including fixtures
but excluding leases and other contract rights which might otherwise be deemed real property, owned by the Company or any of the Company&#146;s Material Subsidiaries, whether owned on the Issue Date or thereafter acquired, that has a book value
(determined in accordance with GAAP) in excess of 2% of the Consolidated Net Tangible Assets of the Company and its consolidated subsidiaries. Any plant, warehouse, office building or parcel of real property or portion thereof which the
Company&#146;s board of directors or the board of directors (or the members, for limited liability companies) of the relevant Material Subsidiary determines is not of material importance to the business conducted by the Company and its subsidiaries
taken as a whole shall not be a Principal Property. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Rating Agency</B>&#148; means each of Moody&#146;s and S&amp;P; provided,
that if any of Moody&#146;s or S&amp;P ceases to provide rating services to issuers or investors, the Company may appoint another &#147;nationally recognized statistical rating organization&#148; within the meaning of Section&nbsp;3(a)(62) of the
Exchange Act as a replacement for such Rating Agency. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Receivable Securitization Facility</B>&#148; means, with respect to the
Company or any of its subsidiaries, a transaction or group of transactions typically referred to as a securitization in which the Company or such subsidiary sells its accounts receivable in a transaction accounted for as a true sale to a special
purpose bankruptcy remote entity that obtains debt financing to finance the purchase price. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Redemption Price</B>&#148; has the
meaning ascribed to such term in Section 6.02 of this Sixth Supplemental Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means
each of J.P. Morgan Securities LLC and Wells Fargo Securities, LLC and their respective successors and two other nationally recognized investment banking firms that are Primary Treasury Dealers specified from time to time by the Company, except that
if any of the foregoing ceases to be a Primary Treasury Dealer, the Company shall substitute another nationally recognized investment banking firm that is a Primary Treasury Dealer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each Reference Treasury Dealer and any redemption date, the
average, as determined by the Company, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Company by such Reference Treasury Dealer as of 3:30 p.m.,
New York City time, on the third business day preceding such redemption date. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>S&amp;P</B>&#148; means Standard&nbsp;&amp; Poor&#146;s Ratings Services, a
division of The McGraw-Hill Companies, Inc., and its successors.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Sale and Leaseback Transaction</B>&#148; has the
meaning ascribed to such term in Section 3.03 of this Sixth Supplemental Indenture.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>subsidiary</B>&#148; means any
corporation, partnership or other legal entity (a)&nbsp;the accounts of which are consolidated with the Company&#146;s in accordance with GAAP and (b)&nbsp;of which, in the case of a corporation, more than 50% of the outstanding voting stock is
owned, directly or indirectly, by the Company or by one or more other subsidiaries, or by the Company and one or more other subsidiaries or, in the case of any partnership or other legal entity, more than 50% of the ordinary equity capital interests
is, at the time, directly or indirectly owned or controlled by the Company or by one or more of the subsidiaries or by the Company and one or more of the subsidiaries.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Swap Agreement</B>&#148; means any agreement with respect to any swap, forward, future or derivative transaction or option or
similar agreement involving, or settled by reference to, one or more rates, currencies, commodities, equity or debt instruments or securities, or economic, financial or pricing indices or measures of economic, financial or pricing risk or value or
any similar transaction or any combination of these transactions; provided that no phantom stock or similar plan providing for payments only on account of services provided by current or former directors, officers, employees or consultants of the
Company or its subsidiaries shall be a Swap Agreement. For the avoidance of doubt, agreements relating to accelerated share repurchase programs, and similar programs or arrangements, shall not be considered Swap Agreements.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date, the rate per annum equal to the semi-annual equivalent
yield to maturity (computed as of the third business day immediately preceding such redemption date) of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to
the Comparable Treasury Price for such redemption date.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Voting Stock</B>&#148; of any specified Person as of any
date means the capital stock of such Person that is at the time entitled to vote generally in the election of the board of directors of such Person.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.02. <I>Rules of Construction</I>. Unless the context otherwise requires or except as otherwise expressly provided, the term
&#147;interest&#148; in the Indenture shall be construed to include additional interest, if any. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 3 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">COVENANTS </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following
covenants shall apply in addition to the covenants set forth in the Indenture: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;3.01. <I>Change of Control Triggering
Event</I>. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>(a) Upon the occurrence of a Change of Control Triggering Event with respect to the Notes, unless the Company has
exercised its right to redeem the Notes pursuant to Article 6 of this Sixth Supplemental Indenture by giving irrevocable notice to the Trustee in accordance with the Indenture, each Holder of Notes shall have the right to require the Company to
purchase all or a portion of such Holder&#146;s Notes pursuant to the offer described in this Section 3.01 (the &#147;<B>Change of Control Offer</B>&#148;), at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid
interest, if any, to the date of purchase (the &#147;<B>Change of Control Payment</B>&#148;), subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date.<B> </B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>(b) Unless the Company has exercised its right to redeem the Notes, within 30 days
following the date upon which the Change of Control Triggering Event occurs with respect to the Notes, or at the Company&#146;s option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Company
shall be required to send a notice to each Holder of Notes, with a copy to the Trustee, which notice shall govern the terms of the Change of Control Offer. Such notice shall state, among other things, the purchase date, which must be no earlier than
30 days nor later than 60 days from the date such notice is sent, other than as may be required by law (the &#147;<B>Change of Control Payment Date</B>&#148;). The notice, if sent prior to the date of consummation of the Change of Control, shall
state that the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) On the Change of Control Payment Date, the Company shall, to the extent lawful: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) accept or cause a third party to accept for payment all Notes or portions of Notes properly tendered pursuant to the Change
of Control Offer; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) deposit or cause a third party to deposit with the paying agent an amount equal to the Change of
Control Payment in respect of all Notes or portions of Notes properly tendered; and </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) deliver or cause to be delivered
to the Trustee the Notes properly accepted together with an Officer&#146;s Certificate stating the aggregate principal amount of Notes or portions of Notes being repurchased and that all conditions precedent to the Change of Control Offer and to the
repurchase by the Company of Notes pursuant to the Change of Control Offer have been complied with. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) The Company shall not be required
to make a Change of Control Offer with respect to the Notes if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for such an offer made by the Company and such third party purchases all
the Notes properly tendered and not withdrawn under its offer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) The Company shall comply in all material respects with the
requirements of Rule 14e-1 under the Exchange Act, and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control
Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the provisions of this Section 3.01, the Company shall comply with those securities laws and regulations and shall not be deemed to have
breached its obligations under this Section 3.01 by virtue of any such conflict. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;3.02. <I>Limitations on Liens</I>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The Company shall not, and shall not permit any Material Subsidiary to, create, assume or guarantee any indebtedness for money borrowed
that is secured by Liens on any Principal Property without making effective provision for securing the Notes equally and ratably with such indebtedness. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The restrictions set forth in paragraph (a) in this Section 3.02 shall not apply to: </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) Liens on Principal Property existing at the time the Company or a Material
Subsidiary acquired or leased the Principal Property, including Principal Property owned by the Company or a Material Subsidiary through a merger or similar transaction; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) Liens on any Principal Property acquired, constructed or improved by the Company or any Material Subsidiary after the
Issue Date, which Liens are created or assumed contemporaneously with, or within 180 days of, such acquisition, construction or improvement and which are created to secure, or provide for the payment of, all or any part of the cost of such
acquisition, construction or improvement; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) Liens on property of any Person existing at the time such Person becomes a
Material Subsidiary; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) Any Permitted Credit Agreement Lien; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(v) any Lien renewing, extending, refinancing or replacing any Lien referred to in clauses (i) through (iv) above; or </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vi) any other Liens on any of the Company&#146;s or its subsidiaries&#146; assets or properties that secure indebtedness,
liabilities and obligations of the Company or its subsidiaries in an aggregate outstanding amount which, together with all Attributable Debt of the Company and any of its subsidiaries with respect to all Sale and Leaseback Transactions that are
entered into pursuant to Section 3.03(c) hereof and are still in existence, does not exceed 15% of the Company&#146;s Consolidated Net Tangible Assets. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;3.03. <I>Limitations on Sale and Leaseback Transactions.</I> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>(a) The Company shall not, and shall not permit any Material Subsidiary to, enter into any arrangement with any Person providing for
the leasing by the Company or any Material Subsidiary of any Principal Property that has been or is to be sold or transferred by the Company or such Material Subsidiary to such person with the intention of taking back a lease of such property (a
&#147;<B>Sale and Leaseback Transaction</B>&#148;).<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The restrictions set forth in paragraph (a) in this Section 3.03 shall not
apply if: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) the Company or such Material Subsidiary would be entitled to incur indebtedness at least equal in amount to
the Attributable Debt with respect to such Sale and Leaseback Transaction secured by a Lien on such Principal Property pursuant to clauses (i) through (v) of Section 3.02(b) of this Sixth Supplemental Indenture without equally and ratably securing
the Notes; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) an amount equal to the greater of (1)&nbsp;the net proceeds of the sale or transfer and (2)&nbsp;the
Attributable Debt of the Principal Property sold (as determined by the Company) is applied within 180 days to the voluntary retirement of Notes or other indebtedness of the Company (other than indebtedness subordinated to the Notes) or a Material
Subsidiary, for money borrowed, maturing more than 12 months after the voluntary retirement; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) the lease is executed
at the time of, or within 12 months after the latest of, the acquisition, the completion of construction or improvement or the commencement of substantial commercial operation of the applicable Principal Property; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) the lease payment in such Sale and Leaseback Transaction is created in
connection with a project financed with, and such obligation constitutes, a Nonrecourse Obligation; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(v) the lease is for a
period not exceeding three years; or </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vi) the lease is with the Company or another Material Subsidiary. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) Notwithstanding the restrictions set forth in paragraph (a) in this Section 3.03, the Company or any of its subsidiaries may enter into a
Sale and Leaseback Transaction that would otherwise be subject to such restrictions if, after giving effect thereto and at the time of determination, the sum of (i)&nbsp;the aggregate principal amount of indebtedness of the Company and its
subsidiaries secured by Liens permitted solely pursuant to Section 3.02(b)(vi) hereof and (ii)&nbsp;the Attributable Debt of the Company and its subsidiaries with respect to such Sale and Leaseback Transaction and all other Sale and Leaseback
Transactions entered into pursuant to this Section 3.03(c) does not exceed 15% of the Company&#146;s Consolidated Net Tangible Assets. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;3.04. <I>Future Guarantors</I>. From and after the Issue Date, the Company shall cause any Material Subsidiary (including any
future Material Subsidiary) that guarantees payment of more than $50,000,000 of the Company&#146;s indebtedness for money borrowed or more than $50,000,000 of indebtedness for money borrowed of the Company&#146;s other subsidiaries to execute and
deliver to the Trustee a supplemental indenture pursuant to which such Material Subsidiary shall guarantee payment of the Notes, whereupon such Material Subsidiary shall become a Guarantor for all purposes under the Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;3.05. <I>Applicability of Covenants Contained in the Base Indenture</I>. Each of the agreements and covenants of the Company
contained in Article 3 of the Base Indenture shall apply to the Notes. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 4 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">THE NOTES </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;4.01.
<I>Form of Notes</I>. The Notes shall initially be issued in the form of one or more Global Securities substantially in the form of <U>Exhibit A</U> attached hereto (the &#147;<B>Global Note</B>&#148;). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;4.02. <I>Depositary</I>. The Depositary for the Global Note shall initially be The Depositary Trust Company
(&#147;<B>DTC</B>&#148;) and the Global Note shall be deposited with, or on behalf of, the Trustee as custodian for DTC and registered in the name of DTC or a nominee of DTC (such nominee being referred to herein as the &#147;<B>Global Note
Holder</B>&#148;). </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 5 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">EVENTS OF DEFAULT </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;5.01. <I>Events of Default</I>. The following Events of Default shall apply to the Notes: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) default in the payment of principal or premium on the Notes when due and payable whether at maturity, upon acceleration, redemption, or
otherwise; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) default in the payment of interest on the Notes when due and payable, if that default continues for a period of 30 days;
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) default in the performance of or breach of any of the Company&#146;s other covenants or
agreements in the Indenture, if that default or breach continues for a period of 90 consecutive days after the Company receives written notice from the Trustee or from the Holders of 25% or more in aggregate principal amount of the Notes; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) any Guarantee by a Material Subsidiary ceases for any reason to be, or is asserted in writing by the Company or such Material Subsidiary
not to be, in full force and effect and enforceable in accordance with its terms except to the extent contemplated by the Indenture and any such Guarantee; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) an event of default, as defined in the indenture or instrument under which the Company or any Material Subsidiary has outstanding at least
$75,000,000 aggregate principal amount of indebtedness for money borrowed, occurs and is continuing and such indebtedness, as a result thereof, is accelerated so that the same is or becomes due and payable prior to the date on which the same would
otherwise have become due and payable, and such acceleration is not rescinded or annulled within 30 days after notice thereof has been given, by registered or certified mail, to the Company by the Trustee, or to the Company and the Trustee by the
Holders of at least 25% in aggregate principal amount of the Notes at the time outstanding; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) a court having jurisdiction enters a
decree or order for: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) relief in respect of the Company or a Material Subsidiary in an involuntary case under any
applicable bankruptcy, insolvency or other similar law now or hereafter in effect; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) appointment of a receiver,
liquidator, assignee, custodian, trustee, sequestrator or similar official of the Company or a Material Subsidiary or for all or substantially all of the Company&#146;s or a Material Subsidiary&#146;s property and assets; or </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) the winding up or liquidation of the Company&#146;s or a Material Subsidiary&#146;s affairs and such decree or order
remains unstayed and in effect for a period of 60 consecutive days; or </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) the Company or a Material Subsidiary: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) commences a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or
consents to the entry of an order for relief in an involuntary case under any such law; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) consents to the appointment
of or taking possession by a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of all or substantially all of the Company&#146;s or a Material Subsidiary&#146;s property and assets; or </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) effects any general assignment for the benefit of creditors. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 6 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">REDEMPTION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;6.01. <I>Optional Redemption</I>. The Notes shall be redeemable, at the option of the Company, at any time and from time to time,
in whole or in part, on not less than 30 nor more than 60 days&#146; prior notice transmitted to the Holders of the Notes, with a copy provided to the Trustee. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;6.02. <I>Optional Redemption by Company</I>. The redemption price (the &#147;<B>Redemption Price</B>&#148;) of the Notes shall be
calculated as follows: </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) If the Notes are redeemed prior to September&nbsp;15, 2023 (the date that is two months prior
to the stated maturity date for the Notes), the Notes shall be redeemable at a Redemption Price equal to the greater of: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) 100% of the principal amount of the Notes to be redeemed; and </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed
(not including interest accrued to the date of redemption), discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 25 basis points, </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; text-indent:4%; font-size:10pt; font-family:Times New Roman">plus, in each case, accrued and unpaid interest on the Notes to be redeemed to the date of redemption. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) If the Notes are redeemed on or after September&nbsp;15, 2023 (the date that is two months prior to the stated maturity date for the
Notes), the Notes will be redeemable at a Redemption Price equal to 100% of the principal amount of such Notes plus accrued and unpaid interest thereon to but excluding the redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) The Trustee shall not be responsible for the calculation of such Redemption Price. The Company shall calculate such Redemption Price and
promptly notify the Trustee in writing thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;6.03. <I>Applicability of Sections of the Base Indenture</I>. The provisions
of Article&nbsp;12 of the Base Indenture in respect of the Notes shall apply to any optional redemption of the Notes except when such provisions conflict with the foregoing. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 7 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">DEFEASANCE </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;7.01. <I>Defeasance</I>. If the Company shall effect a defeasance of the Notes pursuant to Article 10 of the Base Indenture, the
Company shall cease to have any obligation to comply with the covenants set forth in Article 3 hereof. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 8 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SUBSIDIARY GUARANTEES </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.01. <I>Guarantees.</I> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>(a) Each of the Guarantors, as primary obligor and not merely as surety, hereby jointly and severally, irrevocably and fully and
unconditionally guarantees to each Holder and to the Trustee and its successor and assigns (each, a &#147;<B>Guarantee</B>&#148;), on a senior unsecured basis and equal in right of payment to all existing and future senior indebtedness of such
Guarantors, the punctual payment when due of all monetary obligations of the Company under the Indenture and the Notes, whether for principal of or interest on the Notes.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The obligations of each Guarantor shall be limited to the maximum amount as shall, after giving effect to all other contingent and fixed
liabilities of such Guarantor and after giving effect to any collections from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under its Guarantee, result in the obligations of such
Guarantor under the Guarantee not constituting a fraudulent conveyance or fraudulent transfer under applicable law, or being void or unenforceable under any law relating to insolvency of debtors. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">14 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) Each Guarantor further agrees that (to the fullest extent permitted by law) its obligations
hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Indenture, the Notes or the obligations of the Company or any other Guarantor hereunder or thereunder, the absence of any action to enforce the same,
any waiver or consent by any Holder with respect to any provisions hereof or thereof, any release of any other Guarantor, the recovery of any judgment against the Company, any action to enforce the same, or any other circumstance that might
otherwise constitute a legal or equitable discharge or defense of a Guarantor. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) Each Guarantor hereby waives (to the fullest extent
permitted by law) the benefit of diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all
demands whatsoever and covenants that (except as otherwise provided in Section 8.03 of this Sixth Supplemental Indenture) its Guarantee shall not be discharged except by complete performance of the obligations contained in the Notes, the Indenture
and the Guarantee. Such Guarantee is a guarantee of payment and not of collection. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.02. <I>Continuing Guarantee.</I> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) Each Guarantee shall be a continuing Guarantee and shall, (i)&nbsp;subject to Section 8.03 of this Sixth Supplemental Indenture, remain in
full force and effect until payment in full of the principal amount of all outstanding Notes (whether by payment at maturity, purchase, redemption, defeasance, retirement or other acquisition), (ii)&nbsp;be binding upon such Guarantor and
(iii)&nbsp;inure to the benefit of and be enforceable by the Trustee, the Holders and their permitted successors, transferees and assigns. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The obligations of each Guarantor hereunder shall continue to be effective or shall be reinstated, as the case may be, if at any time any
payment which would otherwise have reduced or terminated the obligations of any Guarantor hereunder and under its Guarantee (whether such payment shall have been made by or on behalf of the Company or by or on behalf of a Guarantor) is rescinded or
reclaimed from any of the Holders upon the insolvency, bankruptcy, liquidation or reorganization of the Company or any Guarantor or otherwise, all as though such payment had not been made. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.03. <I>Release of Guarantee</I>. Notwithstanding the provisions of Section 8.02 of this Sixth Supplemental Indenture, a
Guarantor shall be automatically and unconditionally released from its obligations under the indenture upon: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) the sale or other
disposition of such Guarantor; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) the sale or disposition of all or substantially all of the assets of such Guarantor; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) the Company&#146;s exercise of its legal defeasance option or its covenant defeasance option as described in Article 10 of the Base
Indenture or if the Company&#146;s obligations under the Indenture are discharged in accordance with the terms of the Indenture; or </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)
delivery of an Officer&#146;s Certificate to the Trustee that such Guarantor does not guarantee the obligations of the Company under any indebtedness for money borrowed of the Company and that any other guarantees of such Guarantor have been
released other than through discharges as a result of payment by such Guarantor on such guarantees, </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">provided, however, that in the case of clauses (a)
and (b) above, (1)&nbsp;such sale or other disposition is made to a Person other than the Company or one of its subsidiaries and (2)&nbsp;such sale or disposition is otherwise permitted by the Indenture. Upon any such occurrence specified in this
Section 8.03, at the Company&#146;s </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">15 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
request, and upon delivery to the Trustee of an Officer&#146;s Certificate and an Opinion of Counsel, each stating that all conditions precedent under the Indenture relating to such release have
been complied with, the Trustee shall execute any documents reasonably requested by the Company evidencing such release. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.04. <I>Notation Not Required</I>. Neither the Company nor any Guarantor shall be required to make a notation on the Notes to
reflect any Guarantee or any release thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.05. <I>Waiver of Subrogation</I>. Each Guarantor hereby irrevocably waives
any claim or other rights which it may now or hereafter acquire against the Company that arise from the existence, payment, performance or enforcement of such Guarantor&#146;s obligations under its Guarantee and the Indenture, including, without
limitation, any right of subrogation, reimbursement, exoneration, indemnification, and any right to participate in any claim or remedy of any Holder of Notes against the Company, whether or not such claim, remedy or right arises in equity, or under
contract, statute or common law, including, without limitation, the right to take or receive from the Company, directly or indirectly, in cash or other property or by set-off or in any other manner, payment or security on account of such claim or
other rights. If any amount shall be paid to any Guarantor in violation of the preceding sentence and the Notes shall not have been paid in full, such amount shall have been deemed to have been paid to such Guarantor for the benefit of, and held in
trust for the benefit of, the Holders, and shall forthwith be paid to the Trustee for the benefit of such Holders to be credited and applied upon the Notes, whether matured or unmatured, in accordance with the terms of the Indenture. Each Guarantor
acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and that the waiver set forth in this Section 8.05 is knowingly made in contemplation of such benefits. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.06. <I>Execution and Delivery of Guarantees</I>. The Company shall cause each subsidiary that is required to become a Guarantor
pursuant to Section 3.04 of this Sixth Supplemental Indenture to promptly execute and deliver to the Trustee a Supplemental Indenture substantially in the form set forth in <U>Exhibit B</U> to this Sixth Supplemental Indenture, or otherwise in form
and substance reasonably satisfactory to the Trustee, evidencing its Guarantee on substantially the terms set forth in this Article 8. Concurrently therewith, the Company shall deliver to the Trustee an Opinion of Counsel in form and substance
reasonably satisfactory to the Trustee to the effect that such Supplemental Indenture has been duly authorized, executed and delivered by such subsidiary and that, subject to applicable bankruptcy, insolvency, fraudulent transfer, fraudulent
conveyance, reorganization, moratorium and other laws now or hereafter in effect affecting creditors&#146; rights or remedies generally and to general principles of equity (including standards of materiality, good faith, fair dealing and
reasonableness), whether considered in a proceeding at law or at equity, such Supplemental Indenture is a valid and binding agreement of such subsidiary, enforceable against such subsidiary in accordance with its terms. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;8.07. <I>Notices</I>. Notice to any Guarantor shall be sufficient if addressed to such Guarantor care of the Company at the
address, place and manner provided in Section&nbsp;11.04 of the Base Indenture. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 9 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MISCELLANEOUS </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.01.
<I>Ratification of Base Indenture</I>. The Base Indenture, as supplemented by this Sixth Supplemental Indenture, is in all respects ratified and confirmed, and this Sixth Supplemental Indenture shall be deemed part of the Base Indenture in the
manner and to the extent herein and therein provided. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">16 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.02. <I>Trustee Makes No Representation; Trustee&#146;s Rights and Duties</I>. The
recitals contained herein shall be taken as the statements of the Company, and the Trustee assumes no responsibility for the correctness of the same. The Trustee makes no representation as to the validity or sufficiency of this Sixth Supplemental
Indenture and shall not be liable in connection therewith. The rights and duties of the Trustee shall be determined by the express provisions of the Base Indenture and, except as expressly set forth in this Supplemental Indenture, nothing in this
Sixth Supplemental Indenture shall in any way modify or otherwise affect the Trustee&#146;s rights and duties thereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.03. <I>New York Law to Govern</I>. The Indenture and the Notes shall be deemed to be a contract under the laws of the State of
New York, and for all purposes shall be construed in accordance with the laws of such State, except as may otherwise be required by mandatory provisions of law. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.04. <I>Counterparts</I>. This Sixth Supplemental Indenture may be executed in any number of counterparts, each of which shall
be an original; but such counterparts shall together constitute but one and the same instrument. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;9.05. <I>Effect of
Headings</I>. The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[Signature Page Follows] </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">17 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the parties hereto have caused this Sixth Supplemental Indenture to be duly
executed as of the date first above written. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


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<TD WIDTH="80%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5">LENNOX INTERNATIONAL INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Richard A. Pelini</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Richard A. Pelini</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vice President, Corporate Treasurer</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16" COLSPAN="5"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">LENNOX INDUSTRIES INC.</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ALLIED AIR
ENTERPRISES LLC</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">LENNOX GLOBAL LTD.</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">HEATCRAFT INC.</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">HEATCRAFT&nbsp;REFRIGERATION&nbsp;PRODUCTS&nbsp;LLC</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ADVANCED
DISTRIBUTOR PRODUCTS LLC</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">LENNOX&nbsp;NATIONAL&nbsp;ACCOUNT&nbsp;SERVICES&nbsp;LLC</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">LGL AUSTRALIA (US) INC.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">LGL EUROPE HOLDING CO.</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Richard A. Pelini</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Richard A. Pelini</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vice President, Treasurer</TD></TR>
</TABLE></DIV>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[Signature Page to Sixth
Supplemental Indenture] </P>


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<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5">U.S. BANK NATIONAL ASSOCIATION, as Trustee</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Brad Hounsel</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Brad Hounsel</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vice President</TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[Signature Page to Sixth
Supplemental Indenture] </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>EXHIBIT A </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>[FACE OF NOTE] </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THIS
CERTIFICATE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY OR A NOMINEE THEREOF. EXCEPT AS OTHERWISE PROVIDED IN THE INDENTURE, THIS CERTIFICATE MAY BE TRANSFERRED, IN
WHOLE BUT NOT IN PART, ONLY TO ANOTHER NOMINEE OF THE DEPOSITORY OR TO A SUCCESSOR DEPOSITORY OR TO A NOMINEE OF SUCH SUCCESSOR DEPOSITORY. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (&#147;DTC&#148;
OR THE &#147;DEPOSITORY&#148;), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
INSOMUCH AS THE REGISTERED OWNER HEREOF, CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>LENNOX INTERNATIONAL INC. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>3.000% Note due 2023 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"><B>No.: 001</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>CUSIP No.: 526107 AD9</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>$350,000,000</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>LENNOX INTERNATIONAL INC., a Delaware corporation (the &#147;<B>Company</B>&#148;, which term includes
any successor corporation), for value received promises to pay to CEDE&nbsp;&amp; CO., or registered assigns, the principal sum of $350,000,000 on November&nbsp;15, 2023, unless earlier redeemed as herein provided.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Interest Payment Dates: May&nbsp;15 and November&nbsp;15 (each, an &#147;<B>Interest Payment Date</B>&#148;), commencing on May&nbsp;15, 2017.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Interest Record Dates: May&nbsp;1 and November&nbsp;1 (each, an &#147;<B>Interest Record Date</B>&#148;). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Payment of the principal of and interest on this Note shall be made at the office or agency of the Trustee maintained for that purpose in
Dallas Texas, in such currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, for so long as the Notes are represented in global form by one or more Global
Securities, all payments of principal of and interest shall be made by wire transfer of immediately available funds to the Depository or its nominee, as the case may be, as the registered owner of the Global Security representing such Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Reference is made to the further provisions of this Note set forth on the reverse hereof, which will for all purposes have the same effect as
if set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-1 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5">LENNOX INTERNATIONAL INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Todd M. Bluedorn</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Chief Executive Officer</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="51%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5">Attest:</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Name:</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Richard Pelini</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Title:</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Vice President, Corporate Treasurer</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series designated herein and referred to in the within-mentioned Indenture.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD WIDTH="92%"></TD></TR>


<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">U.S. BANK NATIONAL ASSOCIATION, as Trustee</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Name:</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Title:</TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: November&nbsp;3, 2016 </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-2 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>[REVERSE OF NOTE] </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>This Note is one of the duly authorized securities of the Company (herein called the &#147;<B>Notes</B>&#148;) issued and to be issued
in one or more series under an Indenture, dated as of May&nbsp;3, 2010 (as supplemented from time to time heretofore, the &#147;<B>Base Indenture</B>&#148;), as supplemented by a Sixth Supplemental Indenture, dated as of November&nbsp;3, 2016 (the
&#147;<B>Sixth Supplemental Indenture</B>&#148; and, together with the Base Indenture, the &#147;<B>Indenture</B>&#148;), between the Company, the guarantors party thereto (the &#147;<B>Guarantors</B>&#148;) and U.S. Bank National Association, as
trustee (herein called the &#147;<B>Trustee</B>,&#148; which term includes any successor trustee under the Indenture with respect to the series of Notes represented hereby), to which Indenture and all indentures supplemental thereto reference is
hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Guarantors, the Trustee and the Holders of the Notes and of the terms upon which the Notes are, and are to be,
authenticated and delivered. This Note is a Global Note representing the Company&#146;s 3.000% Notes due 2023 in the aggregate principal amount of $350,000,000.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The amount of interest payable on any interest payment date shall be computed on the basis of a 360-day year consisting of twelve 30-day
months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of interest payable on such date will be made on the next succeeding day that is a Business Day (and without any interest or other
payment in respect of any such delay) with the same force and effect as if made on such interest payment date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes of this series
are issuable only in fully registered form without coupons in minimum denominations of $2,000 and integral multiples of $1,000 above that amount. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes shall be redeemable, at the option of the Company, at any time and from time to time, in whole or in part, on not less than 30 nor
more than 60 days&#146; prior notice transmitted to the Holders of the Notes, with a copy provided to the Trustee. The Redemption Price of the Notes shall be calculated as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) If the Notes are redeemed prior to September&nbsp;15, 2023 (the date that is two months prior to the stated maturity date for the Notes),
the Notes shall be redeemable at a Redemption Price equal to the greater of: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) 100% of the principal amount of the Notes
to be redeemed; and </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) the sum of the present values of the remaining scheduled payments of principal and interest on
the Notes to be redeemed (not including interest accrued to the date of redemption), discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 25 basis points,
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; text-indent:4%; font-size:10pt; font-family:Times New Roman">plus, in each case, accrued and unpaid interest on the Notes to be redeemed to the date of redemption. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) If the Notes are redeemed on or after September&nbsp;15, 2023 (the date that is two months prior to the stated maturity date for the
Notes), the Notes will be redeemable at a Redemption Price equal to 100% of the principal amount of such Notes plus accrued and unpaid interest thereon to but excluding the redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means the United States Treasury security selected by an Independent Investment Banker that would
be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-3 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date,
(1)&nbsp;the average of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (2)&nbsp;if the Company obtains fewer than four such Reference
Treasury Dealer Quotations, the average of all Reference Treasury Dealer Quotations obtained.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment
Banker</B>&#148; means one of the Reference Treasury Dealers appointed by the Company. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Primary Treasury Dealer</B>&#148; means a
primary U.S. government securities dealer in the United States. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means each of J.P. Morgan
Securities LLC and Wells Fargo Securities, LLC and their respective successors and two other nationally recognized investment banking firms that are Primary Treasury Dealers specified from time to time by the Company, except that if any of the
foregoing ceases to be a Primary Treasury Dealer, the Company shall substitute another nationally recognized investment banking firm that is a Primary Treasury Dealer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each Reference Treasury Dealer and any redemption date, the
average, as determined by the Company, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Company by such Reference Treasury Dealer as of 3:30 p.m.,
New York City time, on the third business day preceding such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any
redemption date, the rate per annum equal to the semi-annual equivalent yield to maturity (computed as of the third business day immediately preceding such redemption date) of the Comparable Treasury Issue, assuming a price for the Comparable
Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On
and after any redemption date, interest will cease to accrue on the Notes called for redemption. On or before the redemption date, the Company shall deposit with the Trustee or with one or more paying agents an amount of money sufficient to redeem
on the redemption date all of the Notes so called for redemption at the appropriate redemption price, together with accrued interest to the date fixed for redemption. If the Company is redeeming less than all of the Notes, (a)&nbsp;if the Notes are
represented by global notes, interests in the global notes will be selected for redemption in accordance with the customary procedures of DTC, or (b)&nbsp;if the Notes are represented by Notes in certificated form, the Trustee must select the Notes
to be redeemed by such method as the Trustee deems fair and appropriate in accordance with methods generally used at the time of selection by fiduciaries in similar circumstances. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of a Change of Control Triggering Event with respect to the Notes, unless the Company has exercised its right to redeem
the Notes as described above by giving irrevocable notice to the Trustee in accordance with the Indenture, each Holder of Notes shall have the right to require the Company to purchase all or a portion of such Holder&#146;s Notes pursuant to the
offer described below (the &#147;<B>Change of Control Offer</B>&#148;), at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to the date of purchase (the &#147;<B>Change of Control
Payment</B>&#148;), subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-4 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>Unless the Company has exercised its right to redeem the Notes, within 30 days following
the date upon which the Change of Control Triggering Event occurs with respect to the Notes or at the Company&#146;s option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Company shall be
required to send a notice to each Holder of Notes, with a copy to the Trustee, which notice shall govern the terms of the Change of Control Offer. Such notice shall state, among other things, the purchase date, which must be no earlier than 30 days
nor later than 60 days from the date such notice is sent, other than as may be required by law (the &#147;<B>Change of Control Payment Date</B>&#148;). The notice, if sent prior to the date of consummation of the Change of Control, shall state that
the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On the Change of Control Payment Date, the Company shall, to the extent lawful: (i)&nbsp;accept or cause a third party to accept for payment
all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer; (ii)&nbsp;deposit or cause a third party to deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Notes or portions
of Notes properly tendered; and (iii)&nbsp;deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer&#146;s Certificate stating the aggregate principal amount of Notes or portions of Notes being repurchased
and that all conditions precedent to the Change of Control Offer and to the repurchase by the Company of Notes pursuant to the Change of Control Offer have been complied with. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company shall not be required to make a Change of Control Offer with respect to the Notes if a third party makes such an offer in the
manner, at the times and otherwise in compliance with the requirements for such an offer made by the Company and such third party purchases all Notes properly tendered and not withdrawn under its offer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>The Company shall comply in all material respects with the requirements of Rule 14e-1 under the Securities Exchange Act of 1934, as
amended (the &#147;<B>Exchange Act</B>&#148;), and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control
Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the Change of Control Offer provisions of the Notes, the Company shall comply with those securities laws and regulations and shall not be
deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such conflict.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Change of Control</B>&#148; means the occurrence of any of the following after the Issue Date: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a
series of related transactions, of all or substantially all of the Company&#146;s assets and the assets of the Company&#146;s subsidiaries taken as a whole to any &#147;person&#148; or &#147;group&#148; (as those terms are used in
Section&nbsp;13(d)(3) of the Exchange Act) other than to the Company or one of its subsidiaries; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) the consummation of any transaction
(including, without limitation, any merger or consolidation) that results in any &#147;person&#148; or &#147;group&#148; (as those terms are used in Section&nbsp;13(d)(3) of the Exchange Act, provided that an employee of the Company or any of the
Company&#146;s subsidiaries for whom shares are held under an employee stock ownership, employee retirement, employee savings or similar plan and whose shares are voted in accordance with the instructions of such employee is not a member of a
&#147;group&#148; solely because such employee&#146;s shares are held by a trustee under said plan) becoming the &#147;beneficial owner&#148; (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of Voting Stock
representing more than 50% of the voting power of the Company&#146;s outstanding Voting Stock or of the Voting Stock of any of the Company&#146;s direct or indirect parent companies; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-5 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) the Company consolidates with, or merges with or into, any Person, or any Person consolidates
with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the Company&#146;s outstanding Voting Stock or the Voting Stock of such other Person is converted into or exchanged for cash, securities or other
property, other than any such transaction in which the Company&#146;s Voting Stock outstanding immediately prior to such transaction constitutes, or is converted into or exchanged for, Voting Stock representing more than 50% of the voting power of
the Voting Stock of the surviving Person immediately after giving effect to such transaction; or </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) the adoption of a plan relating to
the Company&#146;s liquidation or dissolution. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, a transaction shall not be deemed to involve a Change of
Control solely because the Company becomes a direct or indirect wholly owned subsidiary of a holding company if the direct or indirect holders of the Voting Stock of such holding company immediately following that transaction are substantially the
same as the holders of the Company&#146;s Voting Stock immediately prior to that transaction. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Change of Control Triggering
Event</B>&#148; means, with respect to the Notes, (1)&nbsp;the rating of the Notes is lowered by any of the Rating Agencies on any date during the period (the &#147;<B>Trigger Period</B>&#148;) commencing on the earlier of (a)&nbsp;the occurrence of
a Change of Control and (b)&nbsp;the first public announcement by the Company of any Change of Control (or pending Change of Control), and ending 60 days following consummation of such Change of Control (which Trigger Period shall be extended
following consummation of a Change of Control for so long as any of the Rating Agencies has publicly announced that it is considering a possible ratings change), and (2)&nbsp;the Notes are rated below Investment Grade by each of the Rating Agencies
on any day during the Trigger Period; provided that a Change of Control Trigger Event shall not be deemed to have occurred in respect of a particular Change of Control if the Rating Agency making the reduction in rating does not publicly announce or
confirm or inform the Trustee at the Company&#146;s request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the Change of Control. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, no Change of Control Triggering Event shall be deemed to have occurred in connection with any particular Change
of Control unless and until such Change of Control has actually been consummated. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>I</B><B>nvestment Grade</B>&#148; means a
rating of Baa3 or better by Moody&#146;s (or its equivalent under any successor rating category of Moody&#146;s) or a rating of BBB- or better by S&amp;P (or its equivalent under any successor rating category of S&amp;P), and the equivalent
investment grade credit rating from any replacement rating agency or rating agencies selected by the Company under the circumstances permitting the Company to select a replacement agency and in the manner for selecting a replacement agency, in each
case as set forth in the definition of &#147;Rating Agency.&#148; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Moody&#146;s</B>&#148; means Moody&#146;s Investors Service,
Inc. and its successors. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Person</B>&#148; means any individual, corporation, partnership, limited liability company, business
trust, association, joint-stock company, joint venture, trust, incorporated or unincorporated organization or government or any agency or political subdivision thereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Rating Agency</B>&#148; means each of Moody&#146;s and S&amp;P; provided, that if any of Moody&#146;s or S&amp;P ceases to provide
rating services to issuers or investors, the Company may appoint another &#147;nationally recognized statistical rating organization&#148; within the meaning of Section&nbsp;3(a)(62) of the Exchange Act as a replacement for such Rating Agency. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-6 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>S&amp;P</B>&#148; means Standard&nbsp;&amp; Poor&#146;s Ratings Services, a
division of The McGraw-Hill Companies, Inc., and its successors.<B> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>&#147;<B>Voting Stock</B>&#148; of any specified Person as
of any date means the capital stock of such Person that is at the time entitled to vote generally in the election of the board of directors of such Person.<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the Indenture, the senior and unsecured obligation of the Company and
will rank equally in right of payment to all of the Company&#146;s existing and future senior unsecured and unsubordinated indebtedness. This Note will, to the extent provided in the Indenture, be guaranteed, jointly and severally, by each of the
Guarantors party to the Indenture on a senior unsecured basis. This Note may hereafter be entitled to certain other Guarantees made for the benefit of the Holders. Reference is made to Article 8 of the Sixth Supplemental Indenture for terms relating
to such Guarantees, including the release, termination and discharge thereof. Neither the Company nor any Guarantor shall be required to make any notation on this Note to reflect any Guarantee or any such release, termination or discharge. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are initially limited to $350,000,000 aggregate principal amount. The Company may from time to time, without notice to or the
consent of the Holders of the Notes, create and issue additional Notes ranking equally and ratably with the Notes of this series in all respects (other than the issue price, the date of the issuance, the payment of interest accruing prior to the
issue date of such additional Notes and the first payment of interest following the issue date of such additional Notes), provided that such Notes must be part of the same issue as the Notes initially issued for U.S. federal income tax purposes. Any
such additional Notes shall be consolidated and form a single series with the Notes initially issued, including for purposes of voting and redemptions. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are not entitled to the benefit of any sinking fund. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture imposes certain limitations on the ability of the Company to, among other things, merge or consolidate with any other Person,
and requires that the Company comply with certain further covenants, such as Limitations on Liens and Limitations on Sale and Leaseback Transactions as further described in the Indenture, all of which are applicable to this Note. All such covenants
and limitations are subject to a number of important qualifications and exceptions. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions for the defeasance
at any time of (a)&nbsp;the entire indebtedness of the Company on this Note and (b)&nbsp;certain restrictive covenants and the related defaults and Events of Default, upon compliance by the Company with certain conditions set forth therein, which
provisions apply to this Note. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If an Event of Default with respect to Notes of this series shall occur and be continuing, the principal
of the Notes of this series may (subject to the conditions set forth in the Indenture) be declared due and payable in the manner and with the effect provided in the Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting, with certain exceptions therein provided, the Company and the Trustee, without the consent of
any of the Holders of the outstanding Notes, to modify and amend the Indenture for the purpose of, among other things, curing any ambiguity, defect or inconsistency. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-7 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture also contains provisions permitting the Holders of a majority in aggregate
principal amount of the outstanding Notes, on behalf of the Holders of all Notes, to waive any past default or Event of Default with respect to the Notes and its consequences, except a default in the payment of the principal of or interest on any of
the Notes or in respect of a covenant or other provision which, under the terms of the Indenture, cannot be modified or amended without the consent of the Holder of each outstanding Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company,
which is absolute and unconditional, to pay the principal of and interest on this Note at the times, place and rate, and in the currency, herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No director, officer, employee, incorporator or stockholder, as such, of the Company, any Guarantor or any other obligor in respect of any
Note or any subsidiary of any thereof shall have any liability for any obligation of the Company, any Guarantor or any other obligor in respect of any Note under the Indenture, the Notes or any Guarantee, or for any claim based on, in respect of, or
by reason of, any such obligation or its creation. Each Holder, by accepting this Note, hereby waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall be governed by and construed in accordance with the law of the State of New York. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in the Indenture. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-8 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>EXHIBIT B </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>[Form of Supplemental Indenture in Respect of Subsidiary Guarantees] </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>SUPPLEMENTAL INDENTURE, dated as of &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;,
20&nbsp;&nbsp;&nbsp;&nbsp; (this &#147;<B>Supplemental Indenture</B>&#148;), among [name of Guarantor(s)] (the &#147;Guarantor(s)&#148;), Lennox International Inc., a Delaware corporation (the &#147;<B>Company</B>&#148;), and each other then
existing Guarantor under the Indenture referred to below (the &#147;<B>Existing Guarantors</B>&#148;), and [name of trustee], as Trustee under the Indenture referred to below.<B> </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">RECITALS </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>WHEREAS, the
Company, any Existing Guarantors and the Trustee have heretofore become parties to an Indenture, dated as of May&nbsp;3, 2010 (the &#147;<B>Base Indenture</B>&#148; and, as supplemented by the Sixth Supplemental Indenture (the &#147;<B>Sixth
Supplemental Indenture</B>&#148;), dated as of November&nbsp;3, 2016, the &#147;<B>Indenture</B>&#148;), providing for the issuance of 3.000% Notes due 2023 of the Company (the &#147;<B>Notes</B>&#148;);<B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, Section 8.06 of the Sixth Supplemental Indenture provides that the Company is required to cause the Guarantors to execute and deliver
to the Trustee a supplemental indenture evidencing its guarantee of the punctual payment when due of all monetary obligations of the Company under the Indenture and the Notes on the terms and conditions set forth herein and in Article 8 of the Sixth
Supplemental Indenture; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, each Guarantor desires to enter into such supplemental indenture for good and valuable consideration,
including substantial economic benefit in that the financial performance and condition of such Guarantor is dependent on the financial performance and condition of the Company, the obligations hereunder of which such Guarantor has guaranteed; and
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to Section&nbsp;8.01 of the Base Indenture, the parties hereto are authorized to execute and deliver this Supplemental
Indenture to amend the Indenture, without the consent of any Holder; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">NOW, THEREFORE, in consideration of the foregoing and for other good
and valuable consideration, the receipt of which is hereby acknowledged, the Guarantors, the Company, the Existing Guarantors and the Trustee mutually covenant and agree for the benefit of the Holders of the Notes as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein
as therein defined. The words &#147;herein,&#148; &#147;hereof&#148; and &#147;hereby&#148; and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section
hereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B></B>2. Agreement to Guarantee. [The] [Each] Guarantor, as primary obligor and not merely as surety, hereby jointly and
severally, irrevocably and fully and unconditionally guarantees to each Holder and to the Trustee and its successor and assigns ([the] [each, a] &#147;<B>Guarantee</B>&#148;), on a senior unsecured basis and equal in right of payment to all existing
and future senior indebtedness of such Guarantor(s), the punctual payment when due of all monetary obligations of the Company under the Indenture and the Notes, whether for principal of or interest on the Notes, on the terms and subject to the
conditions set forth in Article 8 of the Sixth Supplemental Indenture and agrees to be bound by (and shall be entitled to the benefits of) all other applicable provisions of the Indenture as a Guarantor.<B> </B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-1 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3. Termination, Release and Discharge. [The] [Each] Guarantor&#146;s Guarantee shall terminate
and be of no further force or effect, and [the] [each] Guarantor shall be released and discharged from all obligations in respect of such Guarantee, as and when provided in Section 8.03 of the Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4. Parties. Nothing in this Supplemental Indenture is intended or shall be construed to give any Person, other than the Holders and the
Trustee, any legal or equitable right, remedy or claim under or in respect of [the] [each] Guarantor&#146;s Guarantee or any provision contained herein or in Article 8 of the Sixth Supplemental Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5. Governing Law. This Supplemental Indenture and the Notes shall be deemed to be a contract under the laws of the State of New York, and for
all purposes shall be construed in accordance with the laws of such State, except as may otherwise be required by mandatory provisions of law. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6. Ratification of Indenture; Supplemental Indentures Part of Indenture. The Indenture, as supplemented by this Supplemental Indenture, is in
all respects ratified and confirmed, and this Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided. The recitals contained herein shall be taken as the statements of the Company,
and the Trustee assumes no responsibility for the correctness of the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7. Counterparts. This Supplemental Indenture may be executed
in any number of counterparts, each of which shall be an original; but such counterparts shall together constitute but one and the same instrument. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">8. Headings. The section headings herein are for convenience only and shall not affect the construction hereof. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-2 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the date first above written. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="3">[NAME OF GUARANTOR(S)]</TD></TR>
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<TD VALIGN="top">By:</TD>
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<TD VALIGN="top" COLSPAN="3">LENNOX INTERNATIONAL INC.</TD></TR>
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<TD VALIGN="top">By:</TD>
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<TD VALIGN="bottom">Name:</TD></TR>
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<DESCRIPTION>EX-5.1
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 5.1</B><B> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Opinion of Jones Day </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">November 3, 2016 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Lennox International Inc. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">2140 Lake Park Blvd. </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Richardson, Texas 75080 </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">Re:</TD>
<TD ALIGN="left" VALIGN="top"><U>$350,000,000 of 3.000% Notes due 2023 of Lennox International Inc.</U> </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Ladies and Gentlemen: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have acted as counsel for Lennox International Inc., a Delaware corporation (&#147;Lennox&#148;), and the Guarantors (as defined below) in
connection with the offering of $350,000,000 aggregate principal amount of 3.000% Notes due 2023 of Lennox (the &#147;Notes&#148;), pursuant to the Underwriting Agreement, dated as of October 25, 2016, by and among Lennox, the Guarantors and J.P.
Morgan Securities LLC and Wells Fargo Securities, LLC, acting as representatives of the several underwriters named therein. The Notes will be issued pursuant to an indenture, dated as of May 3, 2010 (as amended, supplemented or otherwise modified to
the date hereof, the &#147;Base Indenture&#148;), by and among the Company, the guarantors party thereto and U.S. Bank, National Association, as trustee (the &#147;Trustee&#148;), as further supplemented by the Sixth Supplemental Indenture, dated as
of November 3, 2016 (the &#147;Supplemental Indenture&#148; and, together with the Base Indenture, the &#147;Indenture&#148;), by and among Lennox, the Guarantors and the Trustee.&nbsp;Lennox&#146;s obligations under the Notes will be guaranteed
(the &#147;Subsidiary Guarantees&#148;) by Lennox&#146;s subsidiaries listed on <U>Annex A</U> hereto (each, a &#147;Guarantor&#148; and, collectively, the &#147;Guarantors&#148;). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In connection with the opinions expressed herein, we have examined such documents, records and matters of law as we have deemed relevant or
necessary for purposes of such opinions.&nbsp;Based on the foregoing, and subject to the further limitations, qualifications and assumptions set forth herein, we are of the opinion that: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1. The Notes constitute valid and binding obligations of Lennox. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2. The Subsidiary Guarantee of each Guarantor constitutes a valid and binding obligation of that Guarantor. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">For purposes of the opinions expressed herein, we have assumed that (i)&nbsp;the Trustee has authorized, executed and delivered the Indenture,
(ii)&nbsp;the Notes have been duly authenticated by the Trustee in accordance with the Indenture and (iii)&nbsp;the Indenture is the valid, binding and enforceable obligation of the Trustee. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The opinions expressed herein are limited by bankruptcy, insolvency, reorganization, fraudulent transfer and fraudulent conveyance, voidable
preference, moratorium or other similar laws and related regulations and judicial doctrines from time to time in effect relating to or affecting creditors&#146; rights generally, and by general equitable principles and public policy considerations,
whether such principles and considerations are considered in a proceeding at law or at equity. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As to facts material to the opinions and
assumptions expressed herein, we have relied upon oral or written statements and representations of officers and other representatives of Lennox, the Guarantors and others.</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The opinions expressed herein are limited to (i) the laws of the State of New York, (ii) the laws of the State of Florida, (iii) the Delaware
General Corporation Law and (iv) the Limited Liability Company Act of the State of Delaware, in each case as currently in effect, and we express no opinion as to the effect of the laws of any other jurisdiction. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We hereby consent to the filing of this opinion as Exhibit 5.1 to the Current Report on Form 8-K
dated the date hereof and incorporated by reference into the Registration Statement on Form S-3 (Reg. No. 333-214162) (the &#147;Registration Statement&#148;), filed by Lennox and the Guarantors to effect the registration of the Notes and the
Subsidiary Guarantees under the Securities Act of 1933 (the &#147;Act&#148;) and to the reference to Jones Day under the caption &#147;Legal Matters&#148; in the prospectus constituting a part of such Registration Statement. In giving such consent,
we do not hereby admit that we are included in the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Securities and Exchange Commission promulgated thereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:54%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Very truly yours, </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:54%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">/s/ Jones Day&nbsp;&nbsp;&nbsp;&nbsp; </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U>Annex A </U></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:39.95pt; font-size:8pt; font-family:Times New Roman"><B>Guarantors</B></P></TD></TR>


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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Advanced Distributor Products LLC</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Allied Air Enterprises LLC</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Heatcraft Inc.</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Heatcraft Refrigeration Products LLC</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Lennox Global Ltd.</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Lennox Industries Inc.</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Lennox National Account Services LLC</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">LGL Australia (US) Inc.</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">LGL Europe Holding Co.</P></TD></TR>
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