32"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 9.75"h] w28h28 actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 20 5/8" height

+ Product Details Size - 20"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 22" OR 22" X 16" duct opening (measured at the opening)

+ Product Details Size – 26"w X 28"h is the size for the duct opening measurement only

32"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 9.75"h] w28h28 actual front end outer dimensions+ Product Details Size 32"w X 8"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 9. 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