Watts 1/2 in. Pressure Vacuum Breaker

This 1/2 in. quarter turn pressure vacuum breaker provides protection against back siphonage of toxic or non-toxic liquid conditions in industrial plants, cooling towers, laboratories, laundries, swimming pools and lawn sprinkler systems. It features a durable bronze body, check valve and air opening port in one assembly. The maximum working pressure is 150 psi (10.3 bar).