10"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 21.75"h] Color_Red Oak Wood + Product Details Size -

+ Product Details Size - 24"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 16" OR 16" x 24" duct opening (measured at the opening)

height: 22px

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 34" OR 34" x 36" duct opening (measured at the opening)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 18" duct openings

10"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 21.75"h] Color_Red Oak Wood + Product Details Size -+ Product Details Size 10"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 21. 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