16"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 7.75"h] Copper Coil-Insulated Line Set + Product Details Size -

+ Product Details Size - 6"w X 26"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 32" or 32" x 12" duct opening (measured at the opening)

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height

+ Product Details Size – 24" x 30" or 30" x 24" is the size for the duct opening measurement only

16"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 7.75"h] Copper Coil-Insulated Line Set + Product Details Size -+ Product Details Size 16"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 7. 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