14"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 9.75"h] Copper Coil-Insulated Line Set The crank handle lever makes

The crank handle lever makes it easy to adjust to every weather situation

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+ Product Details Size – 18" x 36" or 36" x 18" is the size for the duct opening measurement only

Universal Fit – Dimensions of 6-3/8" wide x 3-1/2" high x 3" deep make it compatible with most standard thermostat models

Actual Filter Size – 25 3/4"w x 21 3/4" x 1"

14"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 9.75"h] Copper Coil-Insulated Line Set The crank handle lever makes+ Product Details Size 14"w X 8"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 9. 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 wear