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| Item | Exhaust Shutter | |
| Type | Gravity Operated, Single Panel | |
| Fits Fan Dia. (In.) | 20 | |
| Overall Square (In.) | 23 | |
| Opening Required (In.) | 20 1/2 x 20 1/2 | |
| Frame Depth (In.) | 2 1/2 | |
| Open Depth (In.) | 5 3/4 | |
| Flange Width (In.) | 1 1/2 | |
| Mounting Hole Size (In.) | 9/32 x 1/2 | |
| Free Area (Square-Ft.) | 2.281 | |
| Max. Velocity (FPM) | 2500 | |
| Mounting Position | Vertical | |
| Blade Material | White Painted Aluminum | |
| Construction Material | Extruded Aluminum Frame and G-90 Glavanized Tie Rod | |
| For Use With | Vertical Mounted Exhaust Fans |
** The "Usually Ships" reflects when an item is generally expected to ship from Grainger based on its stocking location. Real-time availability information will be shown during the checkout process and on the e-mail order confirmation (for U.S. and Puerto Rico - US customers only). Please allow additional delivery time for international orders.
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