Nominal Size Actual Dimensions(Inches)
Perimeter Tolerance ± 1/16"
Thickness Tolerance ± 1/32"
Actual Dimensions(mm)
Perimeter Tolerance ± 1.16
Thickness Tolerance ± .8
Filtering Area Ft²
20x25x1" 19-5/8x24-5/8x7/8" 498.5x625.5x22.2 2.98
20x20x1" 19-5/8x19-5/8x7/8" 498.5x498.5x22.2 2.34
16x25x1" 15-5/8x24-5/8x7/8" 396.9x625.5x22.2 2.33
16x20x1" 15-5/8x19-5/8x7/8" 369.9x498.5x22.2 1.83
15x20x1" 14-5/8x19-5/8x7/8" 371.5x498.5x22.2 1.71
10x20x1" 9-5/8x19-5/8x7/8" 244.5x498.5x22.2 1.07