28"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 7.75"h] 6" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 24" OR 24" x 32" duct opening (measured at the opening)

and beautiful

fasten the edges to studs with the provided screws

Center Core is Removable for Easy Access and Maintence

actual front end outer dimensions are 10" diameter

28"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 7.75"h] 6" Diameter + Product Details Perfect Fit+ Product Details Size 28"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 29. 75" Width X 7. 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