14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 18" or 18" x 8" duct opening (measured at the opening)

+ Product Details Size – 10"w X 32"h is the size for the duct opening measurement only

[Outer Dimensions: 14

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 25" OR 25" X 16" duct opening (measured at the opening)

order a 20x14 grille

14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in + Product Details Perfect Fit & Easy Sizing Designed for a 8" x 18" or 18" x 8" duct opening (measured at the opening) + Product Details Size – 10"w X 32"h is the size for the duct opening measurement only