20"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"w x 11.75"h] Aluminum Crafted meticulously from high-quality steel

Crafted meticulously from high-quality steel

+ Product Details Size – 14"w X 8"h is the size for the duct opening measurement only

+ Product Details Size – 22" x 24" or 24" x 22" is the size for the duct opening measurement only

you can attain the diameter of the vent

875" width X 16" height

20"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"w x 11.75"h] Aluminum Crafted meticulously from high-quality steel+ Product Details Size 20"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 21. 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