30"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 29.75"h] w24h24 actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 36 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 8" duct openings

Installation is hassle-free

+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 34" OR 34" x 24" duct opening (measured at the opening)

30"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 29.75"h] w24h24 actual front end outer dimensions+ Product Details Size 30"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 29. 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