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Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page 1 Superior Pump 99544 Check Valve, 1-1/4 in, ABS Body Your Price: $11.99 Superior Pump 99479/SC150SRS Check Valve, 1-1/2 in, MNPT, ABS Body Your Price: $12.99 Superior Pump 99477/SC125SRS Check Valve, 1-1/4 in, MNPT, ABS Body Your Price: $12.99 Rubber boot inlet and outlet. Full flow design, weighted flapper valve. Durable sonic welded thermo-plastic body. Durable sonic welded thermo-plastic body. Superior Pump 99522 Check Valve, 1-1/2 in, ABS Body Your Price: $12.99 Superior Pump 99555 Check Valve Kit, ABS Body Your Price: $13.99 Rubber boot inlet and outlet. Full flow design, weighted flapper valve. Includes one universal check valve and two adapters. Made from durable ABS plastic. High-quality Nitrile-Buna N seal. Fits all 1-1/4 and 1-1/2 MPT and FPT.       1