24"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 17.75"h] Color_Black Size - 10"w X 10"h

Size - 10"w X 10"h is the size for the duct opening measurement only

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actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height

[Outer Dimensions: 26

actual front end outer dimensions are approximately 14 5/8" width X 36 5/8" height

24"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 17.75"h] Color_Black Size - 10"w X 10"h+ Product Details Size 24"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 17. 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