AQUALINE VACUUM BREAKER .75, 3/4 BRASS W/O UNION

Durable Brass Atmospheric Vacuum Breaker has female pipe thread inlet/outlet. Vacuum breakers are used to prevent back-siphonage of water into the water source reducing the risk of contamination of potable water. These are installed downstream of valves, at least 6 in. above highest water flow and must be in upright level position, not on angle or tilt, with inlet at the bottom and outflow at the side. Vacuum breakers are not rated for constant pressure.