The rust free aluminum roof louvers hood and throat design maximizes air flow. As hot air rises, the vent allows the hot air to escape the attic. It should be installed up towards peak of roof for maximum exhaust. It provides 50 square inches of net free area and has a 9" diameter opening. Color is mill.
- Hood and throat design to maximize airflow
- All aluminum rust free construction
- Provides 50 square inches of net free area per piece
