Backdraft Damper, Vert/Horiz Mtg, 19 3/4Sq MPN:3HHL6
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In Stock
Free Shipping
In Stock
SKU
510-G0541581
Backdraft Damper, Vert/Horiz Mtg, 19 3/4Sq
19.8 In.H-W 4.5 In.L Alu Spring Bkdrft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 20 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 19 3/4 in, Rough Opening Diameter 20 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Square, Free Area 2.5 sq ft, Overall Width 19 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 20 in, Maximum Pressure 1 in wc
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: 20.50
- Package Width: 2.80
- Package Height: 21.20
- Package Weight: 4.75
Product info last updated on February 5, 2026 11:46am UTC
Category: Ventilation