WATTS SERIES LF7 DUAL CHECK VALVE, 3/4 IN. FNPT, LEAD FR

This 3/4 by 3/4 inch dual check valve prevents the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. It is designed for non-health hazard residential water system containment and continuous pressure applications. It is installed immediately downstream of the residential water meter in a vertical or horizontal position. It consists of lead free bronze body construction, union NPT thread female inlet by female NPT thread outlet, two plastic replaceable check valves, and stainless steel springs.