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] d Design – This airflow control

Design – This airflow control component are made to connect to HVAC diffuser and restrict airflow

making it a versatile choice for both residential and commercial settings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

actual front end outer dimensions are approximately 26 5/8" width X 10 5/8" height

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] d Design – This airflow control+ 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