12"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 7.75"H] Round Damper Ring actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 38 5/8" height

offering a shiny

Actual Filter Size – 23 3/4"w x 15 3/4" x 1"

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provide precise damper control and superior air dispersion

12"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 7.75"H] Round Damper Ring actual front end outer dimensions+ Product Details Size 12"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are 13. 75" width X 7. 75" height. Design Individually adjusting curved blades. Multi shutter damper with handle operator to adjust air flow. 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