Duraflo 621218 Gable Vent, 12-Inch X 18-Inch Go to amazon.com Related posts Top 13 best gable vent: Which is the best one in 2022? FeatureHigh UV resistanceCSA approved12" x 18",112 Sq. In. Net Free Area DescriptionThe Rectangular Standard Gable Vent is designed with a molded-in screen to prevent insect and bird infiltration.