4″ Zurn Wilkins 350AST NRS Double Check Valve Assembly
The 4″ Zurn Wilkins 350AST Double Check Valve Assembly is designed for installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 350AST shall provide protection where a potential health hazard does not exist. Incorporates metered by-pass to detect leaks and unauthorized water use.
Lead Free Compliant, Stainless Steel Body, Double Check Assembly with flanged end NRS gate valves.
Model 350AST Series