Trane Flow Through Fan Powered Humidifier

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Model Number
THUMD Flow Through Fan Powered Humidifier


  • Trane


  • For use with all furnace models
  • Front cover access for humidifier pad replacement
  • UV-Resistant cabinet and scale control insert
  • Aluminum humidifier pad treated with ceramic clay
  • Brass solenoid valve with stainless steel valve seat
  • Saddle valve
  • Automatic humidifier control with O.D. sensor (duct mount only)
  • Not for horizontal installations
  • Includes 120V power cord
  • 5-Year limited warranty on parts
  • Optional extended warranty

Available Downloads

Part #
Model #
Type Gal/Day Area Covered
Ship Wt
70088 THUMD500APA00B Flow Through Fan Powered, Automatic 18 Up To 4,200 Sq ft 20 lbs