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] Compatible with Duct 10" + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 12" OR 12" x 36" duct opening (measured at the opening)

Powder paint coating - White

+ Product Details Size - 28"w X 22"h is the size for the duct opening measurement only

75" width X 29

+ Product Details Size – 10" x 32" or 32" x 10" is the size for the duct opening measurement only

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] Compatible with Duct 10" + Product Details Perfect Fit+ 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