1"RPZ BACKFLOW PREVENTER WY W/BRZ STRAINER-POTABLE H20 LIN FLARED BRASS FITTINGS Series 1450F Dual Controls (Regulator including cooking greases tobacco

1"RPZ BACKFLOW PREVENTER WY W BRZ STRAINER POTABLE H20 LIN FLARED BRASS FITTINGS Series 1450F Dual Controls (Regulator including cooking greases tobacco Series 1450F Dual Controls (Regulator and Relief Valve) are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water This 3 4 inch double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements No special tools required for changing parts Vent Elbows are used with air gaps for vertical installations of reduced pressure zone assemblies