8"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 31.75"h] Supply Grille + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 30" OR 30" x 26" duct opening (measured at the opening)

Sleek Design – The clear and unobtrusive design ensures it blends seamlessly with any home

actual front end outer dimensions are approximately 18 5/8" width X 32 5/8" height

Each grille is carefully packaged with cardboard backing to prevent damage during shipment

8"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 31.75"h] Supply Grille + Product Details Perfect Fit+ Product Details Size 8"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 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 wear