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Check valves are used to prevent the reversal of flow in a line
Hayward SPX4000SAV Pump Seal Assembly
Fits CL200 and CL220 series chemical feeders
Jandy Zodiac R0480300 Backplate Seal O-Ring for FloPro FHPM Series Pump
Also fits Hayward drain covers
Waterway 400-5990 2.5" FBT 2" S Pump Union Check valves are used toWaterway 400 5990 2. 5" FBT 2" S Pump Union Specification Half Union Fitting Complete: Complete Half Union Union Fitting Application: Pump 2" Plumbing Connection Size "A": 2", 2 1 2" Plumbing Connection Type "A": Female Buttress Thread (fbt), Slip (s) Plumbing Connection Size "B": 2", 2 1 2" Plumbing Connection Type "B": Female Buttress Thread (fbt), Slip (s)
