25"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 15.75"H] 10" Round Duct Pipe 75"H – fits a 20" 4 X 12 Is CRFG2028 Width_14in

75"H – fits a 20" X 8" duct opening

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

+ Product Details Size – 28" x 28" is the size for the duct opening measurement only

+ Product Details Size - 28"w X 14"h X 2"d (for duct opening measurement only)

This is an essential component that improves the functionality of your HVAC system and will make your building’s ventilation

25"W X 14"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 26.75"W X 15.75"H] 10" Round Duct Pipe 75"H – fits a 20" 4 X 12 Is CRFG2028 Width_14in 75"H – fits a 20" X 8" duct opening this diffuser is the perfect blend of function and style for your home