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- Oatey® Backwater Valves are designed as a sewage check valve to prevent pumped water from flowing back into the basin.
Oatey® Backwater Valve, 4 in Nominal, ABS Body, Black
- 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
- Body MaterialABSNominal Size4 inColorBlackManufacturerOATEYManufacturer #43905