SJB-2726 fits these pumps Manufacturer Part Number Model Number Series U.S. Seal PS-2726 Unitizied / Special Cup Mount Seat Sta-Rite Industries 057755 Wayne Water Systems 17434-001 *with exception of U.S. Seal, all manufacturer's names, part numbers, and descriptions are used for reference purposes only. It is not implied that any part is the product of these manufacturers.