16"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 23.75"h] Brown actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 24 5/8" height

actual front end outer dimensions are approximately 2" wider

+ Product Details Size - 10"w X 6"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 32" OR 32" x 20" duct opening (measured at the opening)

16"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 23.75"h] Brown actual front end outer dimensions+ Product Details Size 16"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 23. 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