10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] Adjustable Return to Ensure Perfect Smooth Finish

to Ensure Perfect Smooth Finish

+ Product Details Size - 4"w X 10"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 36 5/8" height

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height -

10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] Adjustable Return to Ensure Perfect Smooth Finish+ Product Details Size 10"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 27. 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