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The ornamental design for a filter head, as shown. |
FIG. 1 is a top plan view of a filter head showing our new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is an end elevational view thereof;
FIG. 5 is an elevational view taken from the side opposite that shown in FIG. 2; and
FIG. 6 is an elevational view taken from the end opposite that shown in FIG. 4.
Rosaen, Borje O., Fosdick, Dale P.
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