24"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 11.75"h] w16h16 actual front end outer dimensions

actual front end outer dimensions are 13" Width X 13" Height

R value rating of insulation - R3

actual front end outer dimensions are 26

equipped with a lever for airflow dampening

24"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 11.75"h] w16h16 actual front end outer dimensions+ Product Details Size 24"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 11. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never