28"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 13.75"h] with filter How To Measure A Grille

How To Measure A Grille

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

+ Product Details Size – 18" x 28" or 28" x 18" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 10 5/8" height -

28"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 29.75"w x 13.75"h] with filter How To Measure A Grille+ Product Details Size 28"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 29. 75" Width X 13. 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