Oatey 43901 ABS Backwater Valve， 3-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Protects low areas or basements from backflow or waste from street sewers.</li><li>Elastomeric seal in quick action flapper ensures a water tight seal.</li><li>Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand.</li><li>Valve hub fits DWV pipe and can be adapted for sewer and drain pipe.</li><li>1-1/2-Inch or 2-Inch， 6-Inch x 6-Inch Utility Drain Ò Fits over 1 1/2-Inch Sch. 40 DWV pipe or into 2-Inch coupling</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ktb%2BK7xdL.jpg" noproxy>