Watts 957ZRPDA-OSY-CFM 4 - Part of the 957RPDA Series mainline-adatile QT ball valve shutoffs with

QT ball valve shutoffs with lever handles

and they provide tactile and auditory feedback for pedestrians who are visually impaired

Sediment bucket and slotted grate to capture debris

solder union inlet by NPT female outlet connections

RV Diaphragm

Watts 957ZRPDA-OSY-CFM 4 - Part of the 957RPDA Series mainline-adatile QT ball valve shutoffs withThis 4 inch reduced pressure detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Extremely compact and lighter than traditional designs it is approved for horizontal Z pattern installation.