24"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 29.75"h] Color_Red Oak Wood Actual Filter Size – 7

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

875" width X 6" height

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

designed for superior airflow (up to 95%) and easy filter access

Actual Filter Size – 27 3/4"w x 33 3/4" x 1"

24"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 29.75"h] Color_Red Oak Wood Actual Filter Size – 7+ Product Details Size 24"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 29. 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