36" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Brown + Product Details Perfect Fit Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 14" OR 14" x 36" duct opening (measured at the opening)

85" width X 19

+ Product Details Size – 16"w X 30"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 10" or 10" x 8" duct opening (measured at the opening)

+ Product Details Size - 12"w X 32"h X 2"d (for duct opening measurement only)

36" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Brown + Product Details Perfect Fit Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Perfect Fit & Easy Sizing Designed for a 36" x 14" OR 14" x 36" duct opening (measured at the opening) 85" width X 19