8" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Total Outer Dimensions: 12"] Color_Red Oak 75"H – fits a 18"

75"H – fits a 18" X 4" duct opening

+ Product Details Size – 20"w X 12"h is the size for the duct opening measurement only

Superior Airflow Control: Built-in damper lets you control how much air enters your room

actual front end outer dimensions are approximately 32 5/8" width X 38 5/8" height

+ Product Details Size – 10" X 2" is the size for the duct opening (floor/vent hole) measurement only

8" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Total Outer Dimensions: 12"] Color_Red Oak 75"H – fits a 18"+ Product Details Size The listed 8" diameter refers specifically to the size of the duct opening. However, please note that the total outer dimensions of the grille measure 12" in diameter. Design Heavier gauge than needed, built for durability and long life in mind, but still light and handy. (Screws included). Airflow Easy unrestricted airflow for your HVAC system. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was