0887718 (Watts) | 1 Inch | 800M4-FR Freeze Resistant PVB Retrofit Kit

This 1 Inch Retrofit Pressure Vacuum Breaker Repair Kit For Series 800M4-FR Prevents The Reverse Flow of Polluted Water From Entering Into The Potable Water Supply Due to Backsiphonage. It Consists of a Float, Spring, Bonnet And Bonnet O-Ring. It is Ideal in Health Hazard Continuous Pressure Applications Such as Irrigation Systems And Industrial Process Water Systems Where The Water Enters The Equipment at or Below Its Flood Rim. | Watts | 0887718