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This 3/4 inch anti-siphon vacuum breaker can be used on hot or cold water health hazard installations, such as laboratory equipment. It is designed to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It has a brass body, full size orifice, chemical resistant silicone seat disc and an atmospheric vent to prevent spilling. The connections are British Standard Pipe (BSP) thread.
3/4 In Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Special British Threaded Body, Polished Chrome Finish