- Plainview, New York, United States
- US $42.99
- Jan 30th
WATTS 0061935 WATTS 9D 1/2" BACKFLOW PREVENTER Description: Series 9D Dual Check Valves with Intermediate Atmospheric Vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply. It consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves.