21"H-W 5 1/4"L Aluminum Backdraft Damper: For 18 in Fan, Single Panel, 21 in H, 21 in W, 3 in D
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DAYTON 21"H-W 5 1/4"L Aluminum Backdraft Damper: For...
Item 3HHN7
$133.00
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Product Details
| Catalog Page | 2811 |
| Brand | DAYTON |
| Maximum Air Velocity | 2500 fpm |
| Blade Material | Aluminum |
| Overall H x W | 21 in x 21 in |
| Free Area | 2 sq ft |
| Mounting Location | Wall |
| Mounting Position | Vertical |
| Frame Material | Aluminum |
| Fits Fan Diameter | 18 in |
| Flange Type | Front Flange |
| Rough Opening Diameter | 18-1/2 in |
| Rough Opening Shape | Square |
| Rough Opening Length | 18-1/2 in |
| Frame Depth | 3 in |
| Number of Panels | 1 |
| Flange Width | 1-1/2 in |
| Rough Opening Width | 18.5 in |
| Mfr. Model # | 3HHN7 |
| Country of Origin | USA (subject to change) |
| UNSPSC | 30151801 |
Description
21 In.H-W 5 1/4 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Not Applicable, Free Area 2 sq ft, Overall Width 21 in, Frame Material Thickness 0.8 in, Overall Length 5 1/4 in, Connection Type Not Applicable, Frame Depth 3 in