The Oatey Backwater Valve is designed as a sewage check valve to prevent pumped water from flowing back into the basin. Its elastomeric seal inside the flapper ensures a tight seal, preventing fluid from entering. Oatey products have earned the trust of plumbing professionals for over 100 years.
Highlights
4 in. PVC sewage backwater valve
Protects low areas or basements from backflow or waste from street sewers
Elastomeric seal in quick action flapper ensures a water tight seal
Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand
Valve hub fits DWV pipe and can be adapted for sewer and drain pipe
Entire valve assembly
Fits 4 in. PVC Schedule 40 pipe
Can accommodate access sleeves made of Schedule 40 pipe
