3100 Series Damper - 30" x 30" w/Motor

$299.00/EA
Item Number: 113903MK Availability: Usually ships in 24 hours 
Effortlessly control airflow with durable 3100 Series Damper Kits.

• Aluminum back draft dampers are engineered for strength and durability.
• Flanged mount frame.
• Blades are sealed with full-length, vinyl weather stripping.
• Multiple sizes to suit your needs.
• A profile of 1-1/8" allows dampers to fit in just about any wall.
• 116112 and 116113 have a maximum airflow 2,400 FPM.
• Motors have a cable pulley, so no delay timer is needed for fan.
• 116113 includes two motors (115224).
• For those that don't need the full kit, dampers and motors can be purchased separately.