Watts 957N-DOSY 8 - Part of the 957 Series ZA100F-4NH corrosion-resistant build

corrosion-resistant build

This complete rubber parts replacement kit is used for repairing the parts to the relief valve to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure

Heavy-Duty Cast Iron Body & Top Options: Comes standard with a Dura-coated cast iron body

Dura-coated Cast Iron Body: Rugged

and a flashing clamp ensures proper integration with the waterproofing membrane

Watts 957N-DOSY 8 - Part of the 957 Series ZA100F-4NH corrosion-resistant buildThis 8 inch N pattern reduced pressure zone assembly backflow preventer helps 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. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation