Growers Supply


3100 Series Dampers

Effortlessly control airflow with durable 3100 Series Dampers.

  • Aluminum back draft dampers are engineered for strength and durability.
  • Flanged mount frame.
  • Blades are sealed with full-length, vinyl weather stripping.
  • A profile of 1-1/8" allows dampers to fit in just about any wall.
  • 113906 and 113907 have a maximum airflow 2,400 FPM.
  • Motors have a cable pulley, so no delay timer is needed for fan.
  • 113907 requires two motors (115224).

    3100 Series Dampers and Shutter Fabric Kits
  • This kit provides a closed-cell foam seal on the top and sides to prevent moisture. The bottom of the kit has a moisture wicking seal to remove unwanted build up.
  • Comes with Tek screws that have neo-bonded washers to ensure no water can penetrate around the screws.

    3100 Series Motorized Damper Kits
  • Damper Kits include both the damper and the motor.
  • 113906MK and 11390MK have a maximum airflow 2,400 FPM.
  • 113907MK includes two motors (115224).
  • For those that don't need the full kit, dampers and motors can be purchased separately.