Watts 0887717|WW0887717 - RETRO 800M4-FR 1 1/4-2

This 1-1/4 to 2 inch retrofit pressure vacuum breaker repair kit for series 800M4-FR prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a float, spring, bonnet and bonnet O-ring. It is ideal in health hazard continuous pressure applications such as irrigation systems and industrial process water systems where the water enters the equipment at or below its flood rim.