Double Check

Series LF7R Lead-free Dual Check Valves prevent the reverse flow of liquids in a plumbing system from entering the drinking water supply where there is a non-health hazard. Designed for residential water system containment at the service entrance or individual outlets. They can be installed immediately downstream of the residential meter in a horizontal or vertical position. Replaceable compact plastic check modules. Available in a combination of inlet/outlet sizes and types and thread and end connections.