The Hendrickson J10 Hose Bibb Vacuum Breaker prevents backsiphonage through the exterior hose bibb connection. Back-siphonage can occur whenever a negative line pressure (vacuum or partial vacuum) is present that causes the reversal of the normal line flow. The use of the Hose Bibb Vacuum Breaker greatly reduces the possibility of backsiphonage and protects the potable water supply from contaminants that may be present in the hose line or irrigation system. An economical alternative to the high cost of brass. Made of high strength glass reinforced Zytel and meets or exceeds ASSE 1011 and is listed by IAPMO. 3/4" FHT inlet x 3/4" MHT outlet. Operating range 0-125 psi.
