14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 31.75"h] w25h25 Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 30" X 6" duct openings

Actual Filter Size – 29 3/4"w x 27 3/4" x 1"

For 14" duct opening

+ Product Details Size - 26"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 34 5/8" width X 10 5/8" height

14"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 31.75"h] w25h25 Ideal for Walls & Ceilings:+ Product Details Size 14"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 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