14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter flat stamped steel + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 16"w X 32"h is the size for the duct opening measurement only

with actual outer dimensions of 28

+ Product Details Size - 34"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 26" or 26" x 10" duct opening (measured at the opening)

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

14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter flat stamped steel + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 16"w X 32"h is the size for the duct opening measurement only with actual outer dimensions of 28