22"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 23.75"h] w25h25 + Product Details Perfect Fit MFFG410-1 w6h6 actual front end outer

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening)

actual front end outer dimensions are approximately 27 5/8" width X 8 5/8" height

+ Product Details Size – 18"w X 25"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 22"h is the size for the duct opening measurement only

22"w X 22"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 23.75"w x 23.75"h] w25h25 + Product Details Perfect Fit MFFG410 1 w6h6 actual front end outer + Product Details Perfect Fit & Easy Sizing Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening) actual front end outer dimensions are approximately 27 5 8" width X 8 5 8" height