• 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.