- Sturdily constructed from all-aluminum extrusions.
- Damper motor factory installed (24V, 115V or 230V must specify at time of order).
- Maximum 8 square feet per motor.
- Positive seal keeps leakage less than 1%.
- Roll form blades or extruded aluminum blades.
- Available in any combination of width and height.
Note: 3000 & 3100 Series are undercut by 1/4”; 3200 Series is cut exact.