14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 31.75"h] w30h30 actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 34 5/8" height

but still very thin

Solid Rigid Steel Body For Durability and Reliability

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 31.75"h] w30h30 actual front end outer dimensions+ Product Details Size 14"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 31. 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