28" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black Actual Filter Size – 35 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Actual Filter Size – 35 3/4"w x 5 3/4" x 1"

+ Product Details Size – 18" x 32" or 32" x 18" is the size for the duct opening measurement only

+ Product Details Size – 26"w X 34"h is the size for the duct opening measurement only

+ Product Details Size - 18"w X 30"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 32" Or 32" x 34" duct opening (measured at the opening)

28" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black Actual Filter Size – 35 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Actual Filter Size – 35 3 4"w x 5 3 4" x 1" + Product Details Size – 18" x 32" or 32" x 18" is the size for the duct opening measurement only