10"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 23.75"h] Aluminum - Cube Core + Product Details Size –

+ Product Details Size – 16"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 21 5/8" width X 33 5/8" height

+ Product Details Size – 8"w X 10"h is the size for the duct opening measurement only

Measure the size of the vent opening

Carefully Shrink Wrapped – With cardboard backing to prevent damage in shipment

10"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 23.75"h] Aluminum - Cube Core + Product Details Size –+ Product Details Size 10"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 23. 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