LF800M4QT

Series LF800M4QT Lead-free* Anti-Siphon Pressure Vacuum Breakers prevent the reverse flow of liquids in a plumbing system due to backsiphonage where there is a potential health hazard. For use in continuous pressure applications where the water enters the equipment at or below its flood rim. Designed for ease of maintenance with a replaceable plastic seat and readily accessible test cocks for testing and winterization. The seat disc is silicone rubber for durability, and an O-ring bonnet seal resists fouling.