34"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 19.75"h] w6h6 + Product Details Size –

+ Product Details Size – 20"w X 24"h is the size for the duct opening measurement only

And The Cooler Air From Outside WIll Flow In From The Bottom

Copper coil line set fits most ductless mini split air conditioners

actual front end outer dimensions are approximately 4

ready to cut for size of vent pipe

34"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 19.75"h] w6h6 + Product Details Size –+ Product Details Size 34"w X 18"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 19. 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