28"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 29.75"H] Color_Red Oak Wood Its smooth 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
Its smooth
R value rating of insulation - r3
+ Product Details Size - 4"w X 16"h is the size for the duct opening measurement only
closest('dt')
+ Product Details Size – 8" x 30" or 30" x 8" is the size for the duct opening measurement only
28"W X 28"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 29.75"W X 29.75"H] Color_Red Oak Wood Its smooth 4 X 12 Is CRFG2028 Width_14in Its smooth R value rating of insulation r3