18"W X 18"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 19.75"W X 19.75"H] w16h16 actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 18 5/8" height

+ Product Details Size - 26"w X 32"h is the size for the duct opening measurement only

Compatible with 24x24 openings and built from durable

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

18"W X 18"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 19.75"W X 19.75"H] w16h16 actual front end outer dimensions+ Product Details Size 18"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are 19. 75" width X 19. 75" height. Design Individually adjusting curved blades for better air flow control. Screws Included High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a luxurious touch to any home.