Head assembly for refrigerator filter

[0001]FIG. 1 is a perspective view of a head assembly for refrigerator filter showing my new design;

[0002]FIG. 2 is a front elevation view thereof;

[0003]FIG. 3 is a rear elevation view thereof;

[0004]FIG. 4 is a left-side elevation view thereof;

[0005]FIG. 5 is a right-side elevation view thereof;

[0006]FIG. 6 is a top plan view thereof;

[0007]FIG. 7 is a bottom plan view thereof; and,

[0008]FIG. 8 is a perspective view, shown in an environment of use.

[0009]The broken lines shown in FIGS. 1 to 7 depict portions of the head assembly for refrigerator filter and form no part of the claimed design. All other broken lines shown in FIG. 8 depict environment and form no part of the claimed design.