Watts 957NRPDA-BFG-CFM-FS 4 - Part of the 957RPDA Series HDPE This 1/2 inch dual check

This 1/2 inch dual check valve backflow preventer with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply

UPC - 686408611972

ZB400J-2NL

UPC - 098268608205

polypropylene dome bottom strainer

Watts 957NRPDA-BFG-CFM-FS 4 - Part of the 957RPDA Series HDPE This 1/2 inch dual checkThis 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, grooved gear operated butterfly valves with tamper switch,