10" X 8" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 9.75"H] Aluminum - Cube Core } /* LIST SPACING */

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but you will appreciate the benefits over the period of time

+ Product Details Size - 12"w X 24"h is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 11 3/4" x 1"

10" X 8" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 9.75"H] Aluminum - Cube Core } /* LIST SPACING */+ Product Details Size 10"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are 11. 75" width X 9. 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