24"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 25.75"W X 7.75"H] 12" Round Duct Pipe designed for superior airflow control

designed for superior airflow control and noise-free operation

For added protection

Actual Filter Size – 13 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 18 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 12" OR 12" x 36" duct opening (measured at the opening)

24"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 25.75"W X 7.75"H] 12" Round Duct Pipe designed for superior airflow control+ Product Details Size 24"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are 25. 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