10" X 4" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Compatible With Duct 8in This grille is ideal for

This grille is ideal for both sidewall and ceiling installations

actual front end outer dimensions are approximately 16 5/8" width X 18 5/8" height

Carefully Shrink Wrapped – With cardboard backing to prevent damage in shipment

+ Product Details Size - 8"w X 34"h is the size for the duct opening measurement only

10" X 4" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Compatible With Duct 8in This grille is ideal for+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are 11. 75" width X 5. 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