36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 37.75"w x 37.75"h] Adjustable Return actual front end outer dimensions

actual front end outer dimensions are approximately 23 5/8" width X 7 5/8" height

+ Product Details Size - 16"w X 26"h is the size for the duct opening measurement only

+ Product Details Size – 25"w X 32"h is the size for the duct opening measurement only

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

Experience hassle-free installation and full adjustability for optimal airflow

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