36"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 15.75"H] Adjustable Return + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
36"W X 14"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 37.75"W X 15.75"H] Adjustable Return + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 8" x 14" or 14" x 8" is the size for the duct opening measurement only + Product Details Size 12"w X 30"h is the size for the duct opening measurement only