14"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 37.75"h] 1-Way + Product Details Size -

+ Product Details Size - The listed 12" diameter refers specifically to the size of the duct opening

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 22" OR 22" x 32" duct opening (measured at the opening)

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+ Product Details Size – 22"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 14" OR 14" x 30" duct opening (measured at the opening)

14"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 37.75"h] 1-Way + Product Details Size -+ Product Details Size 14"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 37. 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