6"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 7.75"w x 7.75"h] Powder Coated + Product Details Size -

+ Product Details Size - 12"w X 22"h is the size for the duct opening measurement only

75"H – fits a 24" X 6" duct opening

Actual Filter Size – 17 3/4"w x 27 3/4" x 1"

875" width X 22" height

Each grille is securely shrink-wrapped with a cardboard backing to prevent damage during shipment

6"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 7.75"w x 7.75"h] Powder Coated + Product Details Size -+ Product Details Size 6"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 7. 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