7U3-3 1X1

This 1 x 1 series 7 dual check valve backflow preventer prevents the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. It consists of a bronze body construction, with two plastic replaceable check valves, and stainless steel springs. The valve is designed for non-health hazard residential water system containment, continuous pressure applications. It is installed immediately downstream of the residential water meter, in a vertical or horizontal position. Check with local inspection authorities for installation requirements. Minimum working pressure is 10 psi (69 kPa). Maximum working pressure is 150 psi (10 bar).