22"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 11.75"h] Round Damper Ring Actual Filter Size – 11

Actual Filter Size – 11 3/4"w x 23 3/4" x 1"

Its linear bar design maximizes ventilation

75"H – fits a 18" X 6" duct opening

How To Measure A Grille

Actual Filter Size – 11 3/4"w x 15 3/4" x 1"

22"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 11.75"h] Round Damper Ring Actual Filter Size – 11+ Product Details Size 22"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 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