16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coated + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 28"w X 14"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening)

5"w X 12"h]

and centralized air ducted units

actual front end outer dimensions are approximately 24 5/8" width X 8 5/8" height

16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder Coated + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 28"w X 14"h is the size for the duct opening measurement only + Product Details Perfect Fit & Easy Sizing Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening)