14"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 13.75"h] Fixed Blades + Product Details Size –

+ Product Details Size – 25"w X 24"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 8" Diameter

Our coils have a very high PSI burst pressure

+ Product Details Size - 6"w X 10"h X 2"d (for duct opening measurement only)

Versatile Compatibility: Our ceiling grills aren't limited to just T bar drop ceilings

14"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 13.75"h] Fixed Blades + Product Details Size –+ Product Details Size 14"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 13. 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