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| Item | Backdraft Damper/Wall Shutter |
| Blade Material | White Painted Aluminum |
| Fits Fan Dia. (In.) | 18 |
| Flange Width | 1.5" |
| Frame Depth | 2-1/2" |
| Free Area | 2.043 Square-Ft. |
| Material | Extruded Aluminum Frame and G-90 Galvanized Tie Rod |
| Max. Velocity | 2500 fpm |
| Mounting Hole Size | 9/32 x 1/2" |
| Mounting Position | Vertical |
| Number of Panels | 1 |
| Open Depth (In.) | 5-3/4 |
| Opening Required | 18-1/2 x 18-1/2" |
| Overall Square (In.) | 21 |
| Type | Gravity Operated, Single Panel |
| Ship weight (kg) | 2.43 |
| Ship height (cm) | 56.64 |
| Ship length (cm) | 55.88 |
| Ship width (cm) | 8.64 |
| HS code | 8414901080 |
| Country of Origin | US |
| Product | Model | Flange Width | Frame Depth | Frame Material | Free Area | Opening Required | Type | Price | |
|---|---|---|---|---|---|---|---|---|---|
|
3C308 | 1.5" | 2-1/2" | - | 3.320 Square-Ft. | 24-1/2 x 24-1/2" | Gravity Operated, Single Panel | A$269.28 | |
|
3C309 | 1.5" | 3" | - | 5.452 Square-Ft. | 30-1/2 x 30-1/2" | Gravity Operated, Single Panel | A$327.05 | |
|
3C310 | 1.5" | 3" | - | 7.436 Square-Ft. | 36-1/2 x 36-1/2" | Gravity Operated, Single Panel | A$453.05 | |
 |
3C311 | 1.5" | 3" | - | 10.253 Square-Ft. | 42-1/2 x 42-1/2" | Gravity Operated, Double Panel | A$642.77 | |
 |
3C312 | 1.5" | 3" | - | 12.924 Square-Ft. | 48-1/2 x 48-1/2" | Gravity Operated, Double Panel | A$741.14 | |
|
3C313 | 1.5" | 3" | - | 17.007 Square-Ft. | 54-1/2 x 54-1/2" | Gravity Operated, Double Panel | A$1,032.70 | |
|
3C314 | 1.5" | 3" | - | 20.399 Square-Ft. | 60-1/2 x 60-1/2" | Gravity Operated, Double Panel | A$1,307.04 |
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