24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille w6h6 + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

+ Product Details Size – 36"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 27 5/8" width X 32 5/8" height

ensuring even air distribution throughout your space

ceiling height)

24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille w6h6 + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only + Product Details Size – 36"w X 6"h is the size for the duct opening measurement only