10" X 4" [Duct Opening] 3-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Outdoor Vent Covers + Product Description Introducing the

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

actual front end outer dimensions are approximately 28 5/8" width X 26 5/8" height

and smooth surface for years to come

Actual Filter Size – 25 3/4"w x 9 3/4" x 1"

providing comfort and control

10" X 4" [Duct Opening] 3-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Outdoor Vent Covers + Product Description Introducing the+ 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