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 Product Details Size 14 Material_Anodized Aluminum LR164

actual front end outer dimensions are 31

+ Product Details Size - 10"w X 10"h is the size for the duct opening measurement only

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

+ Product Details Size – 20"w X 28"h is the size for the duct opening measurement only

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

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 Product Details Size 14 Material_Anodized Aluminum LR164 actual front end outer dimensions are 31 + Product Details Size 10"w X 10"h is the size for the duct opening measurement only