22"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 15.75"h] Aluminum Bar + Product Details Size -

+ Product Details Size - 8"w X 20"h X 2"d (for duct opening measurement only)

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Designed for optimal air flow and lasting durability

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 10" OR 10" x 20" duct opening (measured at the opening)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 10" duct openings

22"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 15.75"h] Aluminum Bar + Product Details Size -+ Product Details Size 22"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 75" Width X 15. 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