4" PVC BACKWATER VALVE WITH THREADED ACCESS CAP TEE-CON*STAB GAS FITTING Clamp ring has 8 seepage

Clamp ring has 8 seepage grooves on the underside

lanterns and stoves

flexible liner designed to provide a waterproof seal to tile shower bases and for other concealed waterproofing applications

End-of-pipe design seals only at the end of a pipe and won't fall in

They have a brass body (size 1/4 in

4" PVC BACKWATER VALVE WITH THREADED ACCESS CAP TEE-CON*STAB GAS FITTING Clamp ring has 8 seepageThe 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.