1/2" PVC SCH40 SLVNT CHK VLV

The Worldwide PVC Check Valve is durable, reliable and worry-free. Check valves prevent water from flowing back into a pump with a rubber flapper, helping your sewage system to perform at its best. It contains a durable stainless-steel spring with an O-ring seal. Cannot be used with compressed air.|Constructed of heavy-duty PVC|Fits both sch. 40 and 80-pipe|Prevents siphoning of materials back into the main lines|Not for use with compressed air|Maximum pressure 150 psi|1-year limited lifetime warranty