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Master Flow DA1218 Dual Louver, 20-1/2 in L, 14-1/2 in W, Aluminum, Silver, Mill
One-piece aluminum central louver panel construction with pre-punched louvered vanes. Designed for flush or recessed mounting.
| Net Free Ventilating Area | 90 sq-ft |
| Rough Opening Size | 18 in L x 12 in w |
| Material | Aluminum |
| Finish | Mill |
| Color | Silver |
| Length | 20-1/2 in |
| Width | 14-1/2 in |
| Height | 2 in |