Canplas  223285W PVC Backwater Valve with 16-Inch Access Sleeve and ABS Lid, 4-Inch
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<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>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/31TQrkf4oXL.jpg'></br>