24" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 26 5/8" X 22 5/8"] w34h34 Insulation – A thick blanket Compatible with Duct 4" Product Details Size 32 LO246

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

High Quality – High-quality steel with counter-sunk screw holes (screws included) and no sharp edges

85" width X 7

+ Product Details Size – 24"w X 24"h

actual front end outer dimensions are approximately 28 5/8" width X 28 5/8" height

24" X 20" Steel Return Air Filter Grille for 1" Filter Removable Frame * Filter Included * [Outer Dimensions: 26 5 8" X 22 5 8"] w34h34 Insulation – A thick blanket Compatible with Duct 4" Product Details Size 32 LO246 Insulation – A thick blanket of fiberglass insulation provides you with an R Value of 8 High Quality – High quality steel with counter sunk screw holes (screws included) and no sharp edges