10"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 33.75"h] Width_20in 875" width X 9

875" width X 9

actual front end outer dimensions are approximately 32 5/8" width X 22 5/8" height

And The Cooler Air From Outside WIll Flow In From The Bottom

these louvers are built to last

actual front end outer dimensions are approximately 16 5/8" width X 30 5/8" height

10"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 33.75"h] Width_20in 875" width X 9+ Product Details Size 10"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 33. 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