Taco 1/2" Cartridge Pressure Reducing Valve - Union

The 3350 valve is used to automatically feed water to a hydronic system whenever pressure in the system drops below the pressure setting of the valve. Features 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