16"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 17.75"H] Black + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
16"W X 16"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 17.75"W X 17.75"H] Black + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 36"w X 16"h is the size for the duct opening measurement only Available in both standard and custom sizes