17.75"H-W 4.5"L Aluminum Backdraft Dampr: For 12 in Fan, Single Panel, 17 3/4 in H, 17 3/4 in W
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DAYTON 17.75"H-W 4.5"L Aluminum Backdraft Dampr: For...
Item 4HX77
$108.20
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Product Details
| Catalog Page | 2811 |
| Brand | DAYTON |
| Overall H x W | 17-3/4 in x 17-3/4 in |
| Frame Depth | 1-5/8 in |
| Blade Material | Aluminum |
| Mounting Location | Wall |
| Rough Opening Diameter | 15-1/2 in |
| Mounting Position | Vertical |
| Flange Type | Front Flange |
| Flange Width | 1-1/2 in |
| Rough Opening Length | 14-1/2 in |
| Frame Material | Aluminum |
| Rough Opening Width | 15.5 in |
| Rough Opening Shape | Square |
| Free Area | 1.2 sq ft |
| Maximum Air Velocity | 2250 fpm |
| Fits Fan Diameter | 12 in |
| Number of Panels | 1 |
| Mfr. Model # | 4HX77 |
| Country of Origin | USA (subject to change) |
| UNSPSC | 40101504 |
Description
17.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 17 3/4 in, Rough Opening Diameter 15 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 12 in, For Duct Shape Square, Free Area 1.2 sq ft, Overall Width 17 3/4 in, Frame Material Thickness 0.1 in, Overall Length 4 1/2 in, Connection Type Not Applicable, Frame Depth 1 5/8 in