Air Vent 4.2 in. H X 14 in. W X 16.7 in. L X 8 in. D Black Aluminum/Steel Roof Vent

Balanced ventilation will prolong the life of your roof while providing energy savings and comfort. These 40 sq. in. roof vents are made from reliable galvanized steel. This vent features an internal aluminum screen to prevent intrusion by birds or large insects. The slant back design helps divert rain, snow and debris away from the vent opening.