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Item appears unused and includes the original installation instructions. Outer box has wear from storage/shipping, but the damper itself is in very good condition. Please review all photos for exact condition and what is included.
Brand: Dayton
Model / MPN: 4HA11
Type: Ceiling Truss Damper / Gravity Shutter
Fits Fan Diameter: 30 in
Overall Height: 30-3/4 in
Overall Width: 35-7/8 in
Rough Opening: approx. 28-3/4\" x 33.9\"
Frame Material: Aluminum
Blade Material: Aluminum
Blade Thickness: 26 gauge
Color: White
Mounting Location: Ceiling
Mounting Position: Horizontal
Closure Type: Gravity
Opening Type: Gravity
Normally Closed
Maximum Air Velocity: 1,500 FPM
Free Area: 5.4 sq. ft.
Baked enamel finish
Designed for commercial/industrial ventilation applications
Please verify model number and dimensions for compatibility with your application before purchasing.
Ships carefully packaged.
Free shipping lower 48
SB20A
![Dayton 4HA11 Ceiling Truss Damper 30\](img-large/g/TukAAeSwoAJqg0Mv/s-l1600/Dayton-4HA11-Ceiling-Truss-Damper-30-Fan-35-7-8-x-.jpg "Dayton 4HA11 Ceiling Truss Damper 30\")
