10"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 23.75"h] w32h32 14" Diameter Is The Size

14" Diameter Is The Size For The Duct Opening Measurement Only

the gap will expand and retract to meet perfect air supply needed

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 36" OR 36" x 28" duct opening (measured at the opening)

with an additional 1 7/8" width and 2" height

10"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 23.75"h] w32h32 14" Diameter Is The Size+ Product Details Size 10"w X 22"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 23. 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