DERNORD 2" UPVC True Union Ball Check Valve Schedule 80 With Full Port, EPDM Seals, Rated At 200 PSI, 2 Inch Socket

ERA Schedule 80 PVC 2 Inch True Union Ball Check Valve, Socket Connection - Prevents Backflow, Durable, And Leak-Proof - EPDM Seals, Upflow

Spears 2229-007 PVC Schedule 80 True Union Ball Check Valves

Hayward TC10150STE 1-1/2" PVC TC Series True Union Ball Check Valve W/ EPDM O-Ring - Gray (Socket X Threaded) | Supplyhouse.Com