Watts 957ZRPDA-BFG-CFM-FS 4 - Part of the 957RPDA Series Strata Systems Features O-ring to prevent leaks

Features O-ring to prevent leaks

Z645-4NL-VP

Features Vertical back-to-back

This 2 1/2 to 3 inch seat replacement kit is for series 009-S2

Watts 957ZRPDA-BFG-CFM-FS 4 - Part of the 957RPDA Series Strata Systems Features O-ring to prevent leaksThis 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 Z 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,