Watts LF709-NRS 3" Lead Free Double Check Valve Assembly

Watts LF709 3 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply. The assembly has an fused epoxy coated cast iron body, outside stem and yoke resilient seated gate valves, test cocks, checks.