12" [Duct Opening] Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [Black] - [Total Outer Dimensions: 16"] w20h20 + Product Details Size – Product Description Enhance your CRFG68 Victorian Floor Registers

+ Product Details Size – 36"w X 14"h is the size for the duct opening measurement only

+ Product Details Size – 12" x 14" or 14" x 12" is the size for the duct opening measurement only

Powder-Coat Finish – smooth

1/4" - 6518 PSI

+ Product Details Size – 40"w X 10"h is the size for the duct opening measurement only

12" [Duct Opening] Round Ceiling Diffuser Easy Air Flow HVAC Vent Duct Cover [Black] [Total Outer Dimensions: 16"] w20h20 + Product Details Size – Product Description Enhance your CRFG68 Victorian Floor Registers + Product Details Size – 36"w X 14"h is the size for the duct opening measurement only + Product Details Size – 12" x 14" or 14" x 12" is the size for the duct opening measurement only