24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Compatible With Duct 8in + Product Details Size -

+ Product Details Size - 28"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 14 5/8" width X 24 5/8" height

Heavy Gauge Steel – Heavier gauge than needed

Made from high-quality aluminum

24"W X 8"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 9.6"H] Compatible With Duct 8in + Product Details Size -+ Product Details Size 24"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 6" width X 9. 6" height. Design Full Control Vertical Horizontal Air flow Direction. Horizontal blades in the front, Vertical blades in the back, both individually adjustable. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant,