34"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 13.75"h] 14in diameter + Product Details Size -

+ Product Details Size - 20"w X 6"h X 2"d (for duct opening measurement only)

Universal Fit – Measures 6-1/4" wide x 4-3/4" high x 3" deep

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height -

+ Product Details Size - 22"w X 12"h is the size for the duct opening measurement only

34"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 13.75"h] 14in diameter + Product Details Size -+ Product Details Size 34"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 13. 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