Watts 0792040 1" Lead Free Brass Anti-Siphon Vacuum Breaker LF288A

The Watts 0792040 1” Lead Free Brass Anti-Siphon Vacuum Breaker LF288A is an essential plumbing fixture for use in HVAC systems to eliminate back-siphonage, which is the flow of water in a piping system in the wrong direction. This backflow may bring non-portable water or other material into the potable water supplies. This anti-siphon vacuum breaker built from lead-free brass for safe potable water applications has 1” female national pipe thread for direct connection to compatible piping system. This is a Vacuum Breaker from the LF288A series, and its working principle is as basic and efficient as it gets it lets air into the piping system to prevent back-siphonage.