6"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 21.75"h] w24h24 Powder-coat finish – smooth

Powder-coat finish – smooth

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height

+ Product Details Size – 24"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 12"h is the size for the duct opening measurement only

the second number represents the height

6"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 21.75"h] w24h24 Powder-coat finish – smooth+ Product Details Size 6"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 21. 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 wear