18" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 20 5/8"] white 75" width X 21 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
75" width X 21
actual front end outer dimensions are approximately 10 5/8" width X 28 5/8" height
+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)
Actual Filter Size – 24 3/4"w x 19 3/4" x 1"
+ Product Details Size - 25"w X 20"h is the size for the duct opening measurement only
18" X 18" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 20 5 8" X 20 5 8"] white 75" width X 21 4 X 12 Is CRFG2028 Width_14in 75" width X 21 actual front end outer dimensions are approximately 10 5 8" width X 28 5 8" height