The heavy duty galvanized constructed slant back vent has a large flange which allows for easy installation. Its one piece base and throat is weather tight plus adds strength. It also features a double beaded collar with locking tabs. It provides 50 square inches of net free area per piece and can be used on 3/12 to 10/12 roof pitch. The base dimensions are 15-7/8" x 20-3/8", with a 8-1/2" diameter opening. The color is mill.
- Heavy duty galvanized construction
- 8" opening
- 50 square inches net free area per piece
