Louver Damper, Adjustable, 18H x 18W
| Item | 21"H 21"W Drnbl Extrd Alu Combo Dmpr |
|---|---|
| Louver Item | Combination Louver Damper |
| Louver Type | Combination |
| Louver Free Area | 0.521 sq ft |
| Min. Wall Opening (In.) | 18H x 18W |
| For Use With | Intake or Exhaust Applications |
| Louver Max. Intake | 779 cfm |
| Louver Max. Exhaust | 1,114 cfm |
| Louver Material | Extruded Aluminum |
| Intake Louver Inside Width | 15 in |
| Intake Louver Outside Height | 20-1/2 in |
| Inside Height (In.) | 12 |
| Blade Angle (Deg.) | 45/90 |
| Number of Blades | 3 |
| Outside Width (In.) | 20-1/2 |
| Flange Width (In.) | 1-1/2 |
| Max. Velocity (FPM) | 3,000 fpm |
| Includes | Bird Screen |
| Louver Maximum Intake | 779 cfm |
| Free Area | 0.7 sq ft |
| Frame Type | Flanged |
| Beginning Point of Water Penetration | 1,118 fpm |
| Material | Aluminum |
| Outside Height | 17-1/2 in |
| Outside Width | 17-1/2 in |
| Rough Opening Height | 18 in |
| Maximum Exhaust | 1,114 cfm |
| Finish | Mill |
| Blade Angle | 45 deg |
| Rough Opening Width | 18 in |
| Inside Height | 16-1/2 in |
| Maximum Air Velocity | 3,000 fpm |
| Flange Width | 1-1/2 in |
| Inside Width | 15-3/4 in |
| Intake or Exhaust Application | Exhaust, Intake |
| Adjustable Blades | Yes |
| Blade Type | Drainable |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |