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The Master Group sells only in the provinces of Ontario, Quebec and the Maritimes.


See Generalaire Humidifiers
Humidity Control Systems Generalaire
Humidifier GF81 Generalaire

GF81 Up to 18 GPD @ 120F

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  • A high-capacity model that delivers 18 GPD. Split drum design allows easy removal of evaporator sleeve for replacement
  • Drum-type humidifier with capacity for most homes. Installs on vertical warm air supply or cold air return (recommended) plenum.
  • Heated air passes through a water-laden evaporator sleeve, absorbs moisture and then returns to the heating system for distribution throughout your home.
  • An M-2 low voltage humidistat is included.


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