Watts 0887196|WW0887196 - RK 289-B 3/4-1

This 3/4 to 1 Inch 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.