24"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 15.75"h] 6" Round Duct Pipe Design – Rigid gauge built

Design – Rigid gauge built for durability and long life in mind

featuring a 8" round duct opening

Actual Filter Size – 7 3/4"w x 29 3/4" x 1"

+ Product Details Size – 8"w X 4"h is the size for the duct opening measurement only

Noise free components - No vibrating louvers etc

24"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 15.75"h] 6" Round Duct Pipe Design – Rigid gauge built+ Product Details Size 24"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 15. 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