8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] ceiling Experience the difference in quality

Experience the difference in quality with our sleek design and hassle-free functionality

+ Product Details Size - 4"w X 30"h is the size for the duct opening measurement only

6"w X 6"h Is The Size For The Duct Opening Measurement Only

+ Product Spec Sheet Round Ceiling Diffuser Spec Sheet

8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] ceiling Experience the difference in quality+ Product Details Size 8"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 11. 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