4" Over Pipe Fit Backwater Valve

The 4" Over Pipe Fit Backwater Valve is a one-way valve that is installed on a building’s lateral sewer. A properly installed and maintained backwater valve will prevent the sewer from backing up and flooding a building. This backwater valve fits over 4" SCH 40 DWV pipe. The cover is secured to body with four bolts and gasket to provide a positive seal. 
Available in over 3" or 4" pipe fit.  
Features:
Non-corrosive flexible PVC flapper provides seal against backflow
Cover is secured to body with 4 bolts and gasket to provide a positive seal
Threaded brass inserts for attaching cover.
Made in the USA
Manufactured and Assembled in the USA by Plastic Oddities, "Friend of the Plumber". Quality Parts since 1975