Watts 957NRPDA-OSY-CFM 4 - Part of the 957RPDA Series Z100F-3NH Our Waterproof Wall Sheets are

Our Waterproof Wall Sheets are a commercial grade high density polyethylene plastic that can be used to line your walls with a puncture resistant

making it a practical choice for projects requiring a tough

UPC - 098268607543

Heavy-duty cast-iron construction with epoxy coating and anchor flange for durability

The wire is galvanized twice

Watts 957NRPDA-OSY-CFM 4 - Part of the 957RPDA Series Z100F-3NH Our Waterproof Wall Sheets areThis 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 N pattern installation.