FIG. 1 is a view of the top of an embodiment of the filter;
FIG. 2 is an isometric view of the back of an embodiment of the filter;
FIG. 3 is a view of the back of an embodiment of the filter;
FIG. 4 is a view of the top of an embodiment of the filter;
FIG. 5 is a view of the back of an embodiment of the filter;
FIG. 6 is a view of the top of an embodiment of the filter;
FIG. 7 is a view of the back of an embodiment of the filter;
FIG. 8 is a view of the top of an embodiment of the filter;
FIG. 9 is a view of the back of an embodiment of the filter;
FIG. 10 is a view of the top of an embodiment of the filter;
FIG. 11 is a view of the back of an embodiment of the filter;
FIG. 12 is a view of the top of an embodiment of the filter;
FIG. 13 is a view of the back of an embodiment of the filter;
FIG. 14 is a view of the top of an embodiment of the filter;
FIG. 15 is a view of the back of an embodiment of the filter;
FIG. 16 is a view of the top of an embodiment of the filter;
FIG. 17 is a view of the back of an embodiment of the filter;
FIG. 18 is a view of the top of an embodiment of the filter;
FIG. 19 is a view of the back of an embodiment of the filter;
FIG. 20 is a view of the top of an embodiment of the filter;
FIG. 21 is a view of the back of an embodiment of the filter;
FIG. 22 is a view of the top of an embodiment of the filter;
FIG. 23 is a view of the back of an embodiment of the filter;
FIG. 24 is a view of the top of an embodiment of the filter;
FIG. 25 is a view of the back of an embodiment of the filter;
FIG. 26 is a view of the top of an embodiment of the filter;
FIG. 27 is a view of the back of an embodiment of the filter;
FIG. 28 is a view of the top of an embodiment of the filter;
FIG. 29 is a view of the back of an embodiment of the filter;
FIG. 30 is a view of the top of an embodiment of the filter;
FIG. 31 is a view of the back of an embodiment of the filter;
FIG. 32 is a view of the top of an embodiment of the filter;
FIG. 33 is a view of the back of an embodiment of the filter;
FIG. 34 is a view of the top of an embodiment of the filter;
FIG. 35 is a view of the back of an embodiment of the filter;
FIG. 36 is a view of the top of an embodiment of the filter;
FIG. 37 is a view of the back of an embodiment of the filter;
FIG. 38 is a view of the top of an embodiment of the filter;
FIG. 39 is a view of the back of an embodiment of the filter;
FIG. 40 is a view of the top of an embodiment of the filter;
FIG. 41 is a view of the back of an embodiment of the filter;
FIG. 42 is a view of the top of an embodiment of the filter;
FIG. 43 is a view of the top of an embodiment of the filter;
FIG. 44 is a view of the back of an embodiment of the filter;
FIG. 45 is a view of the back of an embodiment of the filter;
FIG. 46 is a view of the top of an embodiment of the filter;
FIG. 47 is a view of the top of an embodiment of the filter; and,
FIG. 48 is a view of the back of an embodiment of the filter.
All surfaces not shown form no part of the claimed design.