12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Grille return grille +Product Description Introducing our Modern 4 X 12 Is CRFG2028 Width_14in

+Product Description Introducing our Modern Floor Register Grille with Dampers – a perfect blend of elegance and functionality for your home

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 20" or 20" x 8" duct opening (measured at the opening)

When it's time to upgrade your HVAC Vents in your house

+ Product Details Size - 36"w X 18"h is the size for the duct opening measurement only

+ Product Details Size – 28"w X 24"h is the size for the duct opening measurement only

12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Grille return grille +Product Description Introducing our Modern 4 X 12 Is CRFG2028 Width_14in +Product Description Introducing our Modern Floor Register Grille with Dampers – a perfect blend of elegance and functionality for your home + Product Details Perfect Fit & Easy Sizing Designed for a 8" x 20" or 20" x 8" duct opening (measured at the opening)