4" ABS Backwater Valve, 43905

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.

Features:

• 4 in. ABS 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
• Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand
• Valve hub fits ABS pipe and can be adapted for sewer and drain pipe
• Fits easily on the end of ABS pipe
• Fits 4 in. ABS Schedule 40 pipe
• Entire valve assembly
• Hub by hub solvent weld connection