Watts 774DCDA-OSY-TS-CFM 12 - Part of the 774DCDA Series silt-fence-selector This second check replacement kit

Watts 774DCDA OSY TS CFM 12 Part of the 774DCDA Series silt fence selector This second check replacement kit This second check replacement kit is used to repair or replace the second check on a 2 1 2 to 3 inch lead free lead free double check valve assembly and is used to prevent the backflow of contaminated water into the potable water supply This 1 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements