16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 17.75"w x 17.75"h] Aluminum + Product Details Perfect Fit w6h6 actual front end outer MFFG410-1

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 14" OR 14" x 22" duct opening (measured at the opening)

+ Product Spec Sheet

actual front end outer dimensions are approximately 26 5/8" width X 12 5/8" height

+ Product Details Size – 25"w X 14"h is the size for the duct opening measurement only

16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Black [Outer Dimensions 17.75"w x 17.75"h] Aluminum + Product Details Perfect Fit w6h6 actual front end outer MFFG410 1 + Product Details Perfect Fit & Easy Sizing Designed for a 22" x 14" OR 14" x 22" duct opening (measured at the opening) + Product Spec Sheet