28"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 11.75"h] w36h36 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 14" OR 14" x 24" duct opening (measured at the opening)

Every grille has a front end frame that will overlap at the wall joint

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 10" duct openings

actual front end outer dimensions are 21

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

28"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 11.75"h] w36h36 + Product Details Perfect Fit+ Product Details Size 28"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 29. 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