12" X 12" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 13.75"H] Fixed Blades with Damper 75" width X 5

75" width X 5

Design – Individually adjusting curved blades for better air flow control

+ Product Details Size - 36"w X 12"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 18" duct opening (measured at the opening)

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height

12" X 12" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 13.75"H] Fixed Blades with Damper 75" width X 5+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are 13. 75" width X 13. 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