29.75"H-W 4.5"L Aluminum Backdraft Dampr: For 30 in Fan, For 30 in Nominal Duct Dia, Single Panel
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DAYTON 29.75"H-W 4.5"L Aluminum Backdraft Dampr: For...
Item 3HHL8
$169.50
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Product Details
| Catalog Page | 2812 |
| Brand | DAYTON |
| Rough Opening Shape | Square |
| Overall H x W | 29-3/4 in x 29-3/4 in |
| Flange Type | None |
| Rough Opening Width | 30 in |
| Maximum Air Velocity | 2000 fpm |
| Mounting Location | Ceiling, Wall |
| Free Area | 6 sq ft |
| Rough Opening Length | 30 in |
| Fits Fan Diameter | 30 in |
| Frame Depth | 2 in |
| Rough Opening Diameter | 30 in |
| Number of Panels | 1 |
| Frame Material | Galvanized Steel |
| Mounting Position | Vertical, Horizontal |
| Blade Material | Aluminum |
| For Nominal Duct Diameter | 30 in |
| Mfr. Model # | 3HHL8 |
| Country of Origin | USA (subject to change) |
| UNSPSC | 40101504 |
Description
29.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 30 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 29 3/4 in, Rough Opening Diameter 30 in, Rough Opening Shape Square, Fits Fan Diameter 30 in, For Duct Shape Square, Free Area 6 sq ft, Overall Width 29 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 30 in, Maximum Pressure 1 in wc