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The field RC is furnished as standard equipment on many leading brands of oil or coal-fired heating equipment. It is calibrated to allow for easy adjustment to the furnace or boiler manufacturer's specifications. Designed for settings from 0.02 - 0.08 in, this control is so sensitive that instrumentation should be used when adjusting the unit during installation.
Field Controls RCBT 46220901 Barometric Draft Damper, 4 in, Stainless Steel, Galvanized