26" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 38 5/8"] Return Grille + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 16"w X 16"h X 2"d (for duct opening measurement only)

Actual Filter Size – 11 3/4"w x 11 3/4" x 1"

+ Product Details Size – 22"w X 20"h is the size for the duct opening measurement only

A: Black Grilles Always Look Sharp And Never Show DIrt & Dust Marks

+ Product Details Size – 14"w X 26"h is the size for the duct opening measurement only

26" X 36" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 28 5 8" X 38 5 8"] Return Grille + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 16"w X 16"h X 2"d (for duct opening measurement only) Actual Filter Size – 11 3 4"w x 11 3 4" x 1"