6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 22.5"] 12in diameter these grilles offer both functionality 4 X 12 Is CRFG2028 Width_14in

these grilles offer both functionality and aesthetic appeal

+ Product Details Size – 20"w X 25"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 22"h is the size for the duct opening measurement only

color: #222

+ Product Details Size - 25"w X 20"h is the size for the duct opening measurement only

6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum White [Outer Dimensions: 8.5" X 22.5"] 12in diameter these grilles offer both functionality 4 X 12 Is CRFG2028 Width_14in these grilles offer both functionality and aesthetic appeal + Product Details Size – 20"w X 25"h is the size for the duct opening measurement only