LF7U4-3 1 1/4X1

This 1 by 1 inch lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. This valve consists of a lead free cast copper silicon alloy body, 1 1/4 inch union female meter thread inlet by 1 inch male NPT outlet, two plastic replaceable check valves, and stainless steel springs. It is designed for non-health hazard residential water system containment, continuous pressure applications and is to be installed immediately downstream of the residential water meter, in a vertical or horizontal position. The minimum working pressure is 10 psi (69 kPa) and maximum working pressure is 150 psi (10 bar).