Captain O-Ring - 3M AquaPure 34737-13C Replacement Orings (3 Pack) (3 Pack) of 3M AquaPure 34737-13C O-Rings Includes 3 replacement o-rings (also called seals or gaskets) to repair your leaking water filter housing For AquaPure models: AP400, AP1610, AP2610, SS1, SS1HA, SS2HA, SS2HB, SSTSD, SST1HA Warrantied for one year by Captain O-Ring LLC