Watts 757-BFG 4 - Part of the 757 Series ZC100F-8NH bonnet and bonnet O-ring

bonnet and bonnet O-ring

Features Factory Replacement Kit

Water drains through but leaves and debris are blocked

and the end outlet accommodates both 3″ sewer pipe and 4″ fittings—giving you versatile solutions for any project

00 Maximum Operating Temperature-Fahrenheit 300 Maximum Working Pressure-BAR 14

Watts 757-BFG 4 - Part of the 757 Series ZC100F-8NH bonnet and bonnet O-ringThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of 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 hazards and from other contaminants found at the service line