6"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 37.75"h] Fixed Blades with Damper actual front end outer dimensions

actual front end outer dimensions are approximately 24 5/8" width X 10 5/8" height

+ Product Details Size – 18"w X 10"h is the size for the duct opening measurement only

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Every part is hand inspected for quality before it is packaged

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

6"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 37.75"h] Fixed Blades with Damper actual front end outer dimensions+ Product Details Size 6"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 37. 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