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Made in the USA since 1965, Hydrolevel's product line includes pioneering steam controls, including the programmable VXT Water Feeder, the groundbreaking CycleGard foam-compensating cut-off, 1100 Series Mini controls and 500 Series cut-offs for commercial boilers. The innovative Fuel Smart HydroStat control performs as a low water cut-off, a temperature limit control and boiler temperature reset.