<Page> Exhibit 23 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statement on Form S-4, as amended (No. 333-64580) of Cantel Medical Corp. of our report dated May 16, 2001 relating to the consolidated financial statements of Minntech Corporation, which are incorporated by reference in this Current Report on Form 8-K/A-2 of Cantel Medical Corp. /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Minneapolis, Minnesota November 20, 2001