6"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 7.75"W X 29.75"H] Aluminum Bar + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
6"W X 28"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 7.75"W X 29.75"H] Aluminum Bar + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 18"w X 32"h is the size for the duct opening measurement only 875" width X 9