8"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 31.75"h] Supply Grille Each grille is carefully packaged

Each grille is carefully packaged with cardboard backing to prevent damage during shipment

actual front end outer dimensions are approximately 26 5/8" width X 22 5/8" height

+ Product Details Size – 20"w X 14"h is the size for the duct opening measurement only

with actual outer dimensions of 28

Actual Filter Size – 27 3/4"w x 7 3/4" x 1"

8"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 31.75"h] Supply Grille Each grille is carefully packaged+ Product Details Size 8"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 31. 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