26"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 13.75"h] w28h28 ventilation

ventilation

14" Diameter Is The Size For The Duct Opening Measurement Only

actual front end outer dimensions are approximately 26 5/8" width X 30 5/8" height

+ Product Details Size - 34"w X 20"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 4" duct openings

26"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 13.75"h] w28h28 ventilation+ Product Details Size 26"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 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