1" PVC SCH40 SLVNT CHK VLV

Homewerks Worldwide PVC Check Valves are durable, reliable and worry-free. Check valves prevent water from flowing back into the 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|Compatible with PVC schedule, 40 and 80-piping (not included)|Prevents siphoning of materials back into the main lines|Not for use with compressed air|Corrosion resistant|1-year limited lifetime warranty