6"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 19.75"h] Floor Grille + Product Details Size – LO246 Product Details Size 32 Compatible with Duct 4"

+ Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

warehouses

75"H – fits a 10" X 6" duct opening

6"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 7.75"w x 19.75"h] Floor Grille + Product Details Size – LO246 Product Details Size 32 Compatible with Duct 4" + Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only actual front end outer dimensions are approximately 22 5 8" width X 52 5 8" height