32"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 25.75"h] Floor Grille 75"H – fits a 18"

75"H – fits a 18" X 4" duct opening

+ Product Details Size - 26"w X 22"h is the size for the duct opening measurement only

Incorporated with Integral Butterfly Damper for full Airflow Control

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

32"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 25.75"h] Floor Grille 75"H – fits a 18"+ Product Details Size 32"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 25. 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