This easy-to-install box includes all necessary support brackets to mount the water supply valves from the top or bottom

(45"-60") extension

Ideal for underground or above ground use

BLACK STEEL PIPE NIPPLE SET (66 PCS)

Clamp ring has 8 seepage

6"PVC BACKWATER VALVE W/CAP W/THREADED ACCESS CAP BLACK PIPE NIPPLES This easy-to-install box includes allThe 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.