24" x 26" or 26" x 24" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 16" x 16" is the size for the duct opening measurement only

+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 6" OR 6" x 28" duct opening (measured at the opening)

powder-coated steel

+ Product Details Size – 12" x 34" or 34" x 12" is the size for the duct opening measurement only

24" x 26" or 26" x 24" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 16" x 16" is the size for the duct opening measurement only + Product Details Size 30"w X 2"h is the size for the duct opening measurement only