12" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 34 5/8"] w20h20 Actual Filter Size – 19 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Actual Filter Size – 19 3/4"w x 13 3/4" x 1"

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

+ Product Details Size – 16"w X 24"h is the size for the duct opening measurement only

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

3 * Insulation density is 30kgs/CBM = 0

12" X 32" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 34 5 8"] w20h20 Actual Filter Size – 19 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Actual Filter Size – 19 3 4"w x 13 3 4" x 1" + Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only