<SEC-DOCUMENT>0000914190-17-000145.txt : 20170502
<SEC-HEADER>0000914190-17-000145.hdr.sgml : 20170502
<ACCEPTANCE-DATETIME>20170502170140
ACCESSION NUMBER:		0000914190-17-000145
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170501
FILED AS OF DATE:		20170502
DATE AS OF CHANGE:		20170502

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEPHROS INC
		CENTRAL INDEX KEY:			0001196298
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				133971809
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		41 GRAND AVENUE
		CITY:			RIVER EDGE,
		STATE:			NJ
		ZIP:			07661
		BUSINESS PHONE:		201.343.5202

	MAIL ADDRESS:	
		STREET 1:		41 GRAND AVENUE
		CITY:			RIVER EDGE,
		STATE:			NJ
		ZIP:			07661

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Astor Andrew
		CENTRAL INDEX KEY:			0001698052

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32288
		FILM NUMBER:		17805946

	MAIL ADDRESS:	
		STREET 1:		1350 WEST FULLERTON AVENUE
		STREET 2:		#501
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60614
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-05-01</periodOfReport>

    <issuer>
        <issuerCik>0001196298</issuerCik>
        <issuerName>NEPHROS INC</issuerName>
        <issuerTradingSymbol>NEPH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001698052</rptOwnerCik>
            <rptOwnerName>Astor Andrew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NEPHROS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>41 GRAND AVENUE</rptOwnerStreet2>
            <rptOwnerCity>RIVER EDGE</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07661</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>166666</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.30</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2017-03-17</value>
            </exerciseDate>
            <expirationDate>
                <value>2022-03-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>166666</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>166666</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.4599</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2027-02-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>289785</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>289785</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.293</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-05-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>209355</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-05-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>209355</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>209355</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On 2/13/17, the Reporting Person was granted an option to purchase up to 579,571 shares of common stock of the Company. 12.5% of the shares subject to the option (relating to a total of 72,446 shares) vest on 2/13/18; 37.5% of the shares subject to the option (relating to a total of 217,339 shares) vest quarterly in 12 equal amounts, commencing on 5/13/18; 20% of the shares subject to the option (relating to a total of 115,914 shares) will vest, if ever, upon approval of listing of the Company's common stock on the NASDAQ Stock Market, New York Stock Exchange or such other national securities exchange approved by the Board; 10% of the shares subject to the option (relating to a total of 57,957 shares) will vest, if ever, on the February 1st following the Company's first completed fiscal year in which annual revenue exceeds $6,000,000; (continued)</footnote>
        <footnote id="F2">and 20% of the shares subject to the option  (relating to a total of 115,914 shares) will vest, if ever, on the February 1st following the Company's first completed fiscal year in which annual revenue exceeds $10,000,000.</footnote>
        <footnote id="F3">On 5/1/17, the Reporting Person was granted an option to purchase up to 418,709 shares of common stock of the Company. 12.5% of the shares subject to the option (relating to a total of 52,339 shares) vest on 5/1/18; 37.5% of the shares subject to the option (relating to a total of 157,016 shares) vest quarterly in 12 equal amounts, commencing on 7/1/18; 10% of the shares subject to the option (relating to a total of 41,871 shares) will vest, if ever, on the February 1st following the Company's first completed fiscal year in which annual revenue exceeds (continued)</footnote>
        <footnote id="F4">$6,000,000; 20% of the shares subject to the option (relating to a total of 83,742 shares) will vest, if ever, on the February 1st following the Company's first completed fiscal year in which annual revenue exceeds $10,000,000; and 20% (relating to a total of 83,742 shares) will vest, if ever, upon approval of listing of the Company's common stock on the NASDAQ Stock Market, New York Stock Exchange or such other national securities exchange approved by the Board.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Amanda Lorentz as attorney-in-fact for Andrew Astor pursuant to power of attorney previously filed.</signatureName>
        <signatureDate>2017-05-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
