32"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 31.75"h] 2-Way Deflection + Product Details Size - 14" Round Duct Pipe FR M 414 White For 10 duct opening

+ Product Details Size - 22"w X 28"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 10" OR 10" X 16" duct opening (measured at the opening)

+ Product Description When it's time to upgrade your HVAC Vents in your house

+ Product Details Size - 16"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 26"h is the size for the duct opening measurement only

32"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 33.75"w x 31.75"h] 2 Way Deflection + Product Details Size 14" Round Duct Pipe FR M 414 White For 10 duct opening + Product Details Size 22"w X 28"h X 2"d (for duct opening measurement only) + Product Details Perfect Fit & Easy Sizing Designed for a 16" x 10" OR 10" X 16" duct opening (measured at the opening)