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_Black Actual Filter Size – 35

Actual Filter Size – 35 3/4"w x 27 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 14" OR 14" x 30" duct opening (measured at the opening)

75" Width X 26

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 20" duct opening (measured at the opening)

For added versatility

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_Black Actual Filter Size – 35+ 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