Backdraft Damper, Horizontal, 39-3/4Sq MPN:3HHN2
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Free Shipping
In Stock
Free Shipping
In Stock
SKU
510-G2920915
Backdraft Damper, Horizontal, 39-3/4Sq
39.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 40 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 39 3/4 in, Rough Opening Diameter 40 in, Rough Opening Shape Square, Fits Fan Diameter 40 in, For Duct Shape Square, Free Area 10.2 sq ft, Overall Width 39 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 40 in
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 41.80
- Package Width: 2.50
- Package Height: 42.50
- Package Weight: 18.33
Product info last updated on February 20, 2026 6:49pm UTC
Category: Ventilation