Product Details
The Extra Large NFA is designed to reduce the number of vents required by two-thirds compared to a standard 50" vent, featuring a galvanized steel venturi for durability. It includes an industry-leading mesh screen that protects against rodents, birds, and insects, ensuring reliable performance. This product is suitable for roof pitches up to 8/12 and is easy to install. The base dimensions are 25" x 25", with an opening diameter of 15".








