20"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 41.875"H] 2-Way + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 8"w X 32"h is the size for the duct opening measurement only

and beautiful

High Quality – Solid rigid steel body for durability and reliability with dampers operable by switch for airflow directional control

Actual Filter Size – 21 3/4"w x 19 3/4" x 1"

+ Product Details Size - 25"w X 22"h is the size for the duct opening measurement only

20"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 21.875"W X 41.875"H] 2 Way + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 8"w X 32"h is the size for the duct opening measurement only and beautiful