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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BFqj4lyu2vUXV6wJ0P1RT6UZBkH0A/GJKbPEzJ6875aFytJGakeVCjcdMyFN9jMG
 ksjp1qbtILu9D0qGLfRIKQ==

<SEC-DOCUMENT>0000019446-10-000002.txt : 20100106
<SEC-HEADER>0000019446-10-000002.hdr.sgml : 20100106
<ACCEPTANCE-DATETIME>20100106133643
ACCESSION NUMBER:		0000019446-10-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100104
FILED AS OF DATE:		20100106
DATE AS OF CHANGE:		20100106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SLOVIN BRUCE
		CENTRAL INDEX KEY:			0001248295

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31337
		FILM NUMBER:		10510777

	MAIL ADDRESS:	
		STREET 1:		35 E 62ND ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10021

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CANTEL MEDICAL CORP
		CENTRAL INDEX KEY:			0000019446
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				221760285
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0731

	BUSINESS ADDRESS:	
		STREET 1:		OVERLOOK AT GREAT NOTCH
		STREET 2:		150 CLOVE ROAD
		CITY:			LITTLE FALLS
		STATE:			NJ
		ZIP:			07424
		BUSINESS PHONE:		9734708700

	MAIL ADDRESS:	
		STREET 1:		OVERLOOK AT GREAT NOTCH
		STREET 2:		150 CLOVE ROAD
		CITY:			LITTLE FALLS
		STATE:			NJ
		ZIP:			07424

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CANTEL INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STENDIG INDUSTRIES INC
		DATE OF NAME CHANGE:	19890425

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHARVOZ CARSEN CORP
		DATE OF NAME CHANGE:	19861215
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-01-04</periodOfReport>

    <issuer>
        <issuerCik>0000019446</issuerCik>
        <issuerName>CANTEL MEDICAL CORP</issuerName>
        <issuerTradingSymbol>CMN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001248295</rptOwnerCik>
            <rptOwnerName>SLOVIN BRUCE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>111 EAST 61ST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10021</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-01-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>252725</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Bruce Slovin</signatureName>
        <signatureDate>2010-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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