Watts 957NRPDA-OSY-GPM-FS 4 - Part of the 957RPDA Series dura-skrim-selector PEX inlet and PEX outlet

PEX inlet and PEX outlet connections

957RPDA Compatible Size Used On 2 1/2 IN to 4 IN Kit Contents Closure Sleeve

Z400M-3NH-VX

UPC - 098268350234

ZM415SC-4IP

Watts 957NRPDA-OSY-GPM-FS 4 - Part of the 957RPDA Series dura-skrim-selector PEX inlet and PEX outletThis 4 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,