Filter element

FIG. 1 is a bottom perspective view of the claimed design, according to a first embodiment;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof; and

FIG. 8 is a right side elevation view thereof;

FIG. 9 is a bottom perspective view of the claimed design, according to a second embodiment;

FIG. 10 is a top perspective view thereof;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a front elevation view thereof;

FIG. 14 is a rear elevation view thereof;

FIG. 15 is a left side elevation view thereof; and,

FIG. 16 is a right side elevation view thereof.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.