8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] Aluminum actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 28 5/8" height

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2" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

How to Measure Your Vent Hole Before Ordering a Grille

+ Product Details Size – 20" x 26 or 26" x 20" is the size for the duct opening measurement only

8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] Aluminum actual front end outer dimensions+ Product Details Size 8"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 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 wear