Just 2″H for better appearance. Injection-molded high-impact resin construction for long life. Colors complement most roofs. Pre-drilled nail holes make installation easier. 11-3/4″ x 9-3/4″ opening 18-1/2″ x 17-1/2″ flashing 4-1/4″H 37 sq.in.
- Ll Building Products Black Roof Louver IR61BL
- L L BUILDING PRODUCTS