Lomanco 770 All-Aluminum Slant Back Vent (Largest Version) Carton of 6

The Lomanco 770 is the largest of slant back vents. This vent has a three sided louver to allow more air to flow through the vent which in turn will remove more heat and moisture from an attic. This 700 series slant back vents are also approved by Texas Department of Insurance "Windstorm" to withstand variable wind speeds. The slant back is designed to prevent roofing discoloration that might occur over the life of your roof. The 770 offers an 9 1/2 inch opening to move air from an attic outside. The Lomanco static vents are designed to be installed on various roof pitches and feature a large flange for easy installation.