18"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 11.75"h] Color_Red Oak actual front end outer dimensions

actual front end outer dimensions are approximately 23 5/8" width X 7 5/8" height

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+ Product Details Size - 12"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 25"h is the size for the duct opening measurement only

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18"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 19.75"w x 11.75"h] Color_Red Oak actual front end outer dimensions+ Product Details Size 18"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 19. 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