Watts 4" Double Check Detector Assembly (709 OSY-CFM 3/4")

Series 709DCDA Double Check Detector Assemblies prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. Its compact epoxy coated cast iron unibody and modular check design facilitate simple and easy installation and maintenance. Benefits: Detects leaks . . . with emphasis on the cost of unaccountable water; incorporates a meter which allows the water utility to: detect leaks underground that historically create great annual cost due to waste. provide a detection point for unauthorized use. It can help locate illegal taps. Modular check design concept facilitates maintenance and assembly access. All sizes are standardly equipped with resilient seated OSY shutoff valves, 5/8" x 3/4" (16 x 19mm) meter and ball type test cocks. Features Body construction fused epoxy coated cast iron Replaceable bronze seats Maximum flo...