<SUBMISSION>
<ACCESSION-NUMBER>0001171520-03-000314
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20031021
<FILING-DATE>20031023
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>WATTS WATER TECHNOLOGIES INC
<CIK>0000795403
<ASSIGNED-SIC>3490
<IRS-NUMBER>042916536
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0630
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>815 CHESTNUT ST
<CITY>NORTH ANDOVER
<STATE>MA
<ZIP>01845
<PHONE>9786881811
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>815 CHESTNUT STREET
<CITY>NORTH ANDOVER
<STATE>MA
<ZIP>01845
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>WATTS INDUSTRIES INC
<DATE-CHANGED>19920703
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>HORNE TIMOTHY P
<CIK>0001235976
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-11499
<FILM-NUMBER>03953459
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>WATTS INDUSTRIES INC
<STREET2>ROUTE 815 CHESTNUT ST
<CITY>NORTH ANDOVER
<STATE>MA
<ZIP>01845
<PHONE>9786881811
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>WATTS INDUSTRIES INC
<STREET2>ROUTE 815 CHESTNUT ST
<CITY>NORTH ANDOVER
<STATE>MA
<ZIP>01845
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>eps1286_ex.xml
<DESCRIPTION>TIMOTHY P. HORNE
<TEXT>
<XML>
<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-10-21</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000795403</issuerCik>
        <issuerName>WATTS WATER TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>WTS</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001235976</rptOwnerCik>
            <rptOwnerName>HORNE TIMOTHY P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>WATTS WATER TECHNOLOGIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>815 CHESTNUT ST</rptOwnerStreet2>
            <rptOwnerCity>NORTH ANDOVER</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01845</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>1</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>1</isTenPercentOwner>
         <isOther>0</isOther>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Class A Common Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2003-10-21</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>C</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>200000</value>
         </transactionShares>
         <transactionPricePerShare>
            <footnoteId id="F1"/>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>336642</value>
            <footnoteId id="F2"/>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
            <footnoteId id="F2"/>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
 </nonDerivativeTable>
 <derivativeTable>
   <derivativeTransaction>
      <securityTitle>
         <value>Class B Common Stock</value>
      </securityTitle>
      <conversionOrExercisePrice>
            <footnoteId id="F1"/>
      </conversionOrExercisePrice>
      <transactionDate>
         <value>2003-10-21</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>C</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>200000</value>
         </transactionShares>
         <transactionPricePerShare>
            <footnoteId id="F1"/>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
            <footnoteId id="F3"/>
      </exerciseDate>
      <expirationDate>
            <footnoteId id="F3"/>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Class A Common Stock</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>200000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>1701220</value>
            <footnoteId id="F4"/>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeTransaction>
   <derivativeHolding>
      <securityTitle>
         <value>Class B Common Stock</value>
      </securityTitle>
      <conversionOrExercisePrice>
            <footnoteId id="F1"/>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F3"/>
      </exerciseDate>
      <expirationDate>
            <footnoteId id="F3"/>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Class A Common Stock</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
            <footnoteId id="F5"/>
            <footnoteId id="F6"/>
            <footnoteId id="F7"/>
            <footnoteId id="F8"/>
            <footnoteId id="F9"/>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>5534920</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
           <value>[See footnotes]</value>
            <footnoteId id="F5"/>
            <footnoteId id="F6"/>
            <footnoteId id="F7"/>
            <footnoteId id="F8"/>
            <footnoteId id="F9"/>
         </natureOfOwnership>
      </ownershipNature>
   </derivativeHolding>
 </derivativeTable>
   <footnotes>
      <footnote id="F1"> The shares of Class A Common Stock were issued pursuant to the conversion on a 1-for-1 basis of shares of Class B Common Stock held by the Reporting Person.</footnote>

      <footnote id="F2"> The Reporting Person also beneficially owns the shares of Class B Common Stock reflected in Column 9 of Table II of this Form 4, which are convertible into shares of Class A Common Stock on a 1-for-1 basis.</footnote>

      <footnote id="F3"> All shares of Class B Common Stock were convertible into Class A Common Stock upon issuance and do not have an expiration date.</footnote>

      <footnote id="F4"> The shares are subject to The Amended and Restated George B. Horne Voting Trust Agreement - 1997 (the &quot;1997 Voting Trust&quot;), of which the Reporting Person serves as sole trustee.</footnote>

      <footnote id="F5"> The Reporting Person indirectly beneficially owns 1,974,600 shares of Class B Common Stock held for the benefit of George B. Horne under a revocable trust, for which the Reporting Person serves as co-trustee, of which 1,724,600 shares are subject to the 1997 Voting Trust</footnote>

      <footnote id="F6"> The Reporting Person indirectly beneficially owns 1,210,840 shares of Class B Common Stock held for the benefit of Daniel W. Horne under a revocable trust, for which the Reporting Person serves as sole trustee, of which 1,185,840 shares are subject to the 1997 Voting Trust</footnote>

      <footnote id="F7"> The Reporting Person indirectly beneficially owns 1,210,840 shares of Class B Common Stock held for the benefit of Deborah Horne under a revocable trust, for which the Reporting Person serves as sole trustee, of which 1,185,840 shares are subject to the 1997 Voting Trust</footnote>

      <footnote id="F8"> The Reporting Person indirectly beneficially owns 1,085,840 shares of Class B Common Stock held for the benefit of Peter W. Horne under a revocable trust, which are subject to the 1997 Voting Trust</footnote>

      <footnote id="F9"> The Reporting Person indirectly beneficially owns 30,200 and 22,600 shares of Class B Common Stock held for the benefit of Tara V. Horne and Tiffany R. Horne, respectively, under irrevocable trusts for which the Reporting Person serves as trustee, all of which shares are subject to the 1997 Voting Trust.</footnote>
   </footnotes>
   <ownerSignature>
      <signatureName>/s/ Lester J. Taufen by Power of Attorney</signatureName>
      <signatureDate>2003-10-23</signatureDate>
   </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
