32" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size – MFFG410-1 w6h6 actual front end outer

+ Product Details Size – 20" x 22" or 22" x 20" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 26 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 26" or 26" x 12" duct opening (measured at the opening)

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32" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R 4.2 Yellow + Product Details Size – MFFG410 1 w6h6 actual front end outer + Product Details Size – 20" x 22" or 22" x 20" is the size for the duct opening measurement only actual front end outer dimensions are approximately 20 5 8" width X 26 5 8" height