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Product Description 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. From the Manufacturer 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.
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