First Check Repair Kit For 8 Inch Lead Free Double Check Detector Assembly for Series 709DCDA

This first check valve kit is used to repair or replace the first check on an 8 inch lead free double check detector assembly and used to prevent the reverse flow of polluted water from entering into the potable water supply. This kit consists of a disc assembly, spring and a cover O-ring. It is ideal at referenced cross-connections identified in non-health hazard applications.