8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] 14in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 24 5/8" height

actual front end outer dimensions are approximately 10 5/8" width X 12 5/8" height

+ Product Details Size – 8"w X 34"h is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

Its smooth

8"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 15.75"h] 14in diameter actual front end outer dimensions+ Product Details Size 8"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 15. 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