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It is easily opened for gravity circulation
The double throttling design controls both hot and cold water supply to the mixed outlet
traffic-rated drainage solution
The material features a heavy-duty thickness that offers enhanced puncture resistance
Watts 757-OSY-FXG 4 - Part of the 757 Series Z100F-8NH It is easily opened forThis 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
