24"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 21.75"h] Brown + Product Details Size -

+ Product Details Size - The listed 6" diameter refers specifically to the size of the duct opening

+ Product Details Size - 8"w X 18"h X 2"d (for duct opening measurement only)

3/8” - 4223 PSI

actual front end outer dimensions are approximately 26 5/8" width X 18 5/8" height

24"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 21.75"h] Brown + Product Details Size -+ Product Details Size 24"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 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