14"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 13.75"h] RV Mobile Home + Product Details Size -

+ Product Details Size - 26"w X 14"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 36 5/8" width X 18 5/8" height

providing efficient performance of up to 300m3/h

+ Product Details Size - 6"w X 22"h X 2"d (for duct opening measurement only)

14"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 13.75"h] RV Mobile Home + Product Details Size -+ Product Details Size 14"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 13. 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