Taco 1/2" Union Press Cartridge Pressure Reducing Valve w/ AutoFill

The 3350-H3 valve is used to automatically feed water to a hydronic system whenever pressure in the system drops below the pressure setting of the valve. Product Features 1/2" Union Press Automatic Pressure Reset from Fast Fill Easy External Dial-up Pressure Setting Set Pressure Indicator Simple serviceability with the unique one piece cartridge Internal check allows the cartridge to be replaced without draining the system Integral Strainer ASSE 1003