8"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 23.75"h] w30h30 the actual front end outer

the actual front end outer dimensions are 7" in diameter

reducing energy costs and maximizing HVAC system lifespan

Actual Front End Outer Dimensions Are 16" Width X 6" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

actual front end outer dimensions are approximately 38 5/8" width X 8 5/8" height

8"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 23.75"h] w30h30 the actual front end outer+ Product Details Size 8"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 23. 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