20" x 30" or 30" x 20" Cube Core Eggcrate Return Air Grille Return + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
20" x 30" or 30" x 20" Cube Core Eggcrate Return Air Grille Return + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 25"w X 20"h is the size for the duct opening measurement only + Product Details Size – 8" x 34" or 34" x 8" is the size for the duct opening measurement only