4", PVC backwater valve, prevents sewage or any other fluid from flowing back into a water system, elastomeric seal in quick action flapper ensures a water tight seal, threaded access cap incorporates a neoprene seal for positive sealing & can be tightened or removed by hand, valve hub fits dwv pipe & can be adapted for sewer & drain pipe. The product is manufactured in china. Easy installation and easy handling.
4", PVC backwater valve, prevents sewage or any other fluid from flowing back into a water system, elastomeric seal in quick action flapper ensures a water tight seal, threaded access cap incorporates a neoprene seal for pos...
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