10"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 29.75"h] 2-Way Deflection + Product Details Size -

+ Product Details Size - 25"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 14"w X 2"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 18" or 18" x 8" is the size for the duct opening measurement only

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With precise measurements and easy installation

10"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 29.75"h] 2-Way Deflection + Product Details Size -+ Product Details Size 10"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 29. 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