X0303 4 2009-03-18 0000019446 CANTEL MEDICAL CORP CMN 0000905400 DIKER CHARLES M 745 FIFTH AVE. NEW YORK NY 10153 1 1 1 0 Chairman Common Stock, par value $.10 per share 2009-03-18 4 J 0 7500 0 D 262944 I By trusts for benefit of children Common Stock, par value $.10 per share 2009-03-18 4 J 0 6000 0 D 48076 I By custodial accounts for benefit of grandchildren Common Stock, par value $.10 per share 1815071 D Common Stock, par value $.10 per share 277786 I By reporting person's wife Common Stock, par value $.10 per share 13080 I Shares held by Dico Group, Inc. This transaction involved the transfer of shares to the reporting person's adult daughter (who lives outside the reporting person's household) from a trust account for her benefit. The reporting person no longer has a reportable beneficial interest in such shares. This transaction involved the transfer of shares to custodial accounts for the benefit of the reporting person's grandchildren from accounts in which the reporting person had trading authority. The reporting person no longer has a reportable beneficial interest in such shares. /s/ Charles M. Diker 2009-03-19