Active Ventilation Products Round Back Vent product line is excellent at venting attic space, for shingled sloped roofs. The Round Back Vent is made of rust free aluminum with an 7 in. Dia opening, inner vertical cylinder wildlife guard and 12 in. x 12 in. square flange. It has a manufactured 1-piece spun round aluminum vent cap that prevents rain and snow from entering the vent. Its low profile design looks pleasing on shingled roofs.
Great for exhausting bathroom fans, range hoods in the kitchen and more, fits existing ductwork
Mill finish aluminum will continually have a long lasting clean appearance
Built-in inner vertical louver cylinder has a 1/8 in. opening between louver blades that will keep out insects, birds, and animals while allowing air to move through the vent without resistance
Round design provides for excellent air flow and maximum wind strength
Pitch capacity: 3/12 to 12/12
2 in. clearance between bottom of vent cap and flange
1/8th in. opening between the louver blades and all aluminum (non-combustible) material meets the requirements of California building code 706A.2 vents to resist the intrusion of burning embers and flame through ventilation openings
Helps to reduce energy costs by removing heat in the summer and excess moisture in the winter
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