14" X 14" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] Fixed Blades with Damper Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 27 3/4" x 1"

actual front end outer dimensions are approximately 32 5/8" width X 28 5/8" height

+ Product Details Size - 16"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

For added protection

14" X 14" [Duct Opening] 4-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] Fixed Blades with Damper Actual Filter Size – 27+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are 15. 75" width X 15. 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