10"W X 10"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 11.75"W X 11.75"H] w28h28 For example

For example

+ Product Details Outer dimensions: 19

actual front end outer dimensions are approximately 27 5/8" width X 24 5/8" height

The 1/2" white insulation

16"w X 3"h Is The Size For The Duct Opening Measurement Only

10"W X 10"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 11.75"W X 11.75"H] w28h28 For example+ Product Details Size 10"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are 11. 75" width X 11. 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.