The Series 765 Pressure Vacuum Breakers are used to protect against health hazard and non-health hazard back siphon-age conditions in industrial plants, cooling towers laboratories, laundries, swimming pools and lawn sprinkler systems. The lightweight poppet seals air opening under minimum flow conditions and the engineered plastic bonnet protects the valve body from freeze damage. End Connections - NPT ANSI/ASME B1.20.1.

• All bronze body for durability
• 1 check valve and an air opening port in one assembly
• All internal parts serviceable in line from the top of the unit
• Easy to install for contractors or homeowners