144 sq. in. of net free area airflow per vent for efficient attic ventilation 
    25" round galvanized steel dome built for long-lasting durability
    Suitable for 3/12 to 8/12 roof pitches, easy installation, no wiring required 
    Multiple roof vents are usually needed to provide the required net free area
    UV Resistant with a 5-year manufacturer warranty
    Helps prevent attic heat, moisture, and winter ice dams year-round
    Large vent size reduces the number of vents needed for proper airflow
    Must be spaced equally over the roof to provide sufficient airflow along the entire roof sheathing