6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille flat stamped steel + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 14"w X 22"h is the size for the duct opening measurement only

providing comfort and control

+ Product Details Size - 25"w X 18"h is the size for the duct opening measurement only

Installation – Installs directly on round & oval spiral duct - no frames

actual front end outer dimensions are approximately 34 5/8" width X 36 5/8" height

6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille flat stamped steel + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 14"w X 22"h is the size for the duct opening measurement only providing comfort and control