Watts 957NRPDA-OSY-GPM-FS 6 - Part of the 957RPDA Series mainline-siltfence diaphragm gasket

diaphragm gasket

with ASTM F-1087 compliant PEX connections on the other

This repair kit is for the replacement of the 1 inch Watts backflow preventer relief valve cover

watertight seal

UPC - 098268914849

Watts 957NRPDA-OSY-GPM-FS 6 - Part of the 957RPDA Series mainline-siltfence diaphragm gasketThis 6 inch reduced pressure detector backflow preventer assembly help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. Extremely compact and lighter than traditional designs it is approved for horizontal N pattern installation. This assembly consists of a stainless steel body with a quick access sleeve, torsion spring check valves, resilient seated gate valves with outside stem and yoke,