12" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [Black] - [Total Outer Dimensions: 16"] w32h32 + Product Details Size -

+ Product Details Size - 4"w X 28"h is the size for the duct opening measurement only

24"w X 6"h Is The Size For The Duct Opening Measurement Only

Installing the plaster frame is effortless – secure it into your sheetrock

thanks to counter-sunk screw holes and included screws

Quality Packaging - Carefully Shrink Wrapped with Cardboard Backing to Prevent Damage in Shipment

12" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [Black] - [Total Outer Dimensions: 16"] w32h32 + Product Details Size -+ Product Details Size The listed 12" diameter refers specifically to the size of the duct opening. However, please note that the total outer dimensions of the grille measure 16" 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