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 + Product Details Perfect Fit Height_14in WD G128 hp jblade overlay

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 20" OR 20" x 26" duct opening (measured at the opening)

+ Product Details Size – 14" x 30" or 30" x 14" is the size for the duct opening measurement only

If your duct opening is 14 inches in diameter

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Its elegant look and fine finish and the natural warmth of oak wood

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 + Product Details Perfect Fit Height_14in WD G128 hp jblade overlay + Product Details Perfect Fit & Easy Sizing Designed for a 26" x 20" OR 20" x 26" duct opening (measured at the opening) + Product Details Size – 14" x 30" or 30" x 14" is the size for the duct opening measurement only