8" X 8" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 9.75"W X 9.75"H] 6" Diameter + Product Details Size -

+ Product Details Size - 30"w X 16"h is the size for the duct opening measurement only

Experience the difference in quality with our sleek design and hassle-free functionality

Our grilles feature a durable powder-coat finish

Noise free components - no vibrating louvers etc

+ Product Details Size - 24"w X 2"h is the size for the duct opening measurement only

8" X 8" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 9.75"W X 9.75"H] 6" Diameter + Product Details Size -+ Product Details Size 8"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are 9. 75" width X 9. 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