Canplas  223284W PVC Backwater Valve, 4-Inch
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<b>[Product Information]</b><br>
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<li>Protection against the backflow of sewage and storm water</li>
<li>Compact, lightweight and easy to install</li>
<li>All Canplas Backwater valves are socket x socket with all sockets being DWV</li>
<li>Acme threads provide positive traction and extra strength</li>
<li>Neoprene O-ring effectively seals valve lid</li>
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