10" X 10" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 11.75"H] Color_Red Oak Wood Measure the size of the

Measure the size of the vent opening

Actual Filter Size – 23 3/4"w x 13 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height

Installation – Easy to Install

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 24" or 24" x 12" duct opening (measured at the opening)

10" X 10" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 11.75"H] Color_Red Oak Wood Measure the size of the+ Product Details Size 10"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are 11. 75" width X 11. 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