10" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 8 5/8"] Return + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

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

will change the appearance of the entire room

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

with actual outer dimensions of 20

+ Product Details Size - 30"w X 22"h is the size for the duct opening measurement only

10" X 6" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 12 5 8" X 8 5 8"] Return + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 18"w X 18"h is the size for the duct opening measurement only will change the appearance of the entire room