10" X 4" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Return actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

actual front end outer dimensions are approximately 38 5/8" width X 22 5/8" height -

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

actual front end outer dimensions are 31

+ Product Details Size – 24"w X 8"h is the size for the duct opening measurement only

these airflow control components provide you with effortless control over your indoor environment

10" X 4" [Duct Opening] 1 Way Air Vent Adjustable Aluminum Curved Blades Integral Multi Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 5.75"H] Return actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 38 5 8" width X 22 5 8" height also referred to as T Bar or Lay in system