14"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 15.75"w x 15.75"h] 10" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 16 5/8" width X 16 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 34" OR 34" x 30" duct opening (measured at the opening)

+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior strength and durability

12"w X 2"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size - 32"w X 4"h is the size for the duct opening measurement only

14"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 15.75"w x 15.75"h] 10" Diameter actual front end outer dimensions+ Product Details Size 14"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 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