Watts 774-OSY 4 - Part of the 774 Series Geotextile 6 mil thick Dura Skrim

6 mil thick Dura Skrim 2 is a lightweight

Dura-Coated Cast Iron Body with Bottom Outlet & Seepage PanProvides strength and corrosion resistance

Z150F-4NH-C

or coupler

Watts 774-OSY 4 - Part of the 774 Series Geotextile 6 mil thick Dura SkrimThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated 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. It is ideal for protection at cross connections identified as non health hazard applications and from other contaminants