10"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 11.75"W X 7.75"H] w6h6 Actual Filter Size – 11

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

with actual outer dimensions of 16

also referred to as T-Bar or Lay-in system

Designed for optimum performance

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

10"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 11.75"W X 7.75"H] w6h6 Actual Filter Size – 11+ Product Details Size 10"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are 11. 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