Zurn 1" LF 350XL Double Check Valve Assembly, Double Male Meter THD

**Lead Free Designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Assembly shall provide protection where a potential health hazard does not exist. MATERIALS Main valve body Cast Bronze ASTM B 584 Access covers Cast Bronze ASTM B 584 Internals Stainless Steel, 300 Series Elastomers Silicone (FDA approved) Buna Nitrile (FDA approved) Polymers Noryl, NSF Listed Springs Stainless steel, 300 series