Filter unit

Description

FIG. 1 is a front perspective view of a filter unit;

FIG. 2 is a front view of the filter unit of FIG. 1;

FIG. 3 is a rear view of the filter unit of FIG. 1;

FIG. 4 is a first side view of the filter unit of FIG. 1;

FIG. 5 is a second side view of the filter unit of FIG. 1;

FIG. 6 is a top view of the filter unit of FIG. 1; and,

FIG. 7 is bottom view of the filter unit of FIG. 1.

The dashed broken lines shown in the figures are for the purpose of illustrating portions of the filter unit and form no part of the claimed design.

Claims

The ornamental design for a filter unit as shown and described.