28"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 23.75"h] Color_R-8.0 Pink + Product Details Size –

+ Product Details Size – 12" x 24" or 24" x 12" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 8 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 10" duct openings

actual front end outer dimensions are approximately 20 5/8" width X 27 5/8" height -

28"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 23.75"h] Color_R-8.0 Pink + Product Details Size –+ Product Details Size 28"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 29. 75" Width X 23. 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