WW0887196, Watts, 3/4-1 Backflow Repair Kit, For Vaccum Breaker, Vent Spring, Bonnet, Bonnet O-Ring

This 3/4-1 IN spill resistant atmospheric vacuum breaker repair kit prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a vent spring, bonnet and bonnet O-ring. It is ideal for health hazard applications requiring continuous pressure such as on chemical dispensers or factory machine equipment.