12"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 13.75"w x 13.75"h] 2-Way + Product Details Size –

+ Product Details Size – 10" X 2" is the size for the duct opening (floor/vent hole) measurement only

Elevate comfort while saving on bills with HVAC Premium's Aluminum Adjustable Return Grill

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

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

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