36" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 38 5/8" X 36 5/8"] Compatible With Duct 10in + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
36" X 34" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 38 5 8" X 36 5 8"] Compatible With Duct 10in + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 20"w X 10"h is the size for the duct opening measurement only Actual Filter Size – 33 3 4"w x 19 3 4" x 1"