Oatey® 43904 PVC Backwater Valve, 4"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. 4" Material: PVC Plastic Color: White Protects low areas or basements from backflow or waste from street sewers Elastomeric seal in
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