8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 35.75"h] w8h8 our grill boasts an impressive

our grill boasts an impressive 96% airflow capacity

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 8" or 8" x 12" duct opening (measured at the opening)

75"H – fits a 24" X 6" duct opening

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

8"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 35.75"h] w8h8 our grill boasts an impressive+ Product Details Size 8"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 35. 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 wear