8" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [Black] - [Total Outer Dimensions: 12"] w20h20 Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 35 3/4" x 1"

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

Produced in accordance with ISO 9001-2008 Quality Management System

+ Product Details Size – 24"w X 18"h is the size for the duct opening measurement only

this diffuser is the perfect blend of function and style for your home

8" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [Black] - [Total Outer Dimensions: 12"] w20h20 Actual Filter Size – 27+ 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