30" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 32 5/8" X 14 5/8"] 12" Round Duct Pipe + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 24"w X 24"h X 2"d (for duct opening measurement only)

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

or luxury Victorian design

+ Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only

+ Product Details Size – 16" x 16" is the size for the duct opening measurement only

30" X 12" Steel Return Air Filter Grille for 1" Filter Removable Frame * Filter Included * [Outer Dimensions: 32 5 8" X 14 5 8"] 12" Round Duct Pipe + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 24"w X 24"h X 2"d (for duct opening measurement only) + Product Details Size – 18"w X 30"h is the size for the duct opening measurement only