12"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 27.75"h] Color_Anodized Aluminum actual front end outer dimensions

actual front end outer dimensions are 19" Width X 13" Height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 8" OR 8" x 28" duct opening (measured at the opening)

+ Product Details Size – 6" x 26" or 26" x 6" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 30 5/8" height

High Quality – high-quality steel with counter-sunk screw holes (screws included) and no sharp edges

12"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 27.75"h] Color_Anodized Aluminum actual front end outer dimensions+ Product Details Size 12"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 27. 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