The ornamental design for a housing for a retractabletow strap assembly, as shown and described.
FIG. 1 is a perspective view, taken from the front, top, and right side, of a housing for a retractable tow strap assembly, in accordance with my new design;
FIG. 2 is a rear elevational view of the housing for a retractable tow strap assembly shown in FIG. 1;
FIG. 3 is a front elevational view of the housing for a retractable tow strap assembly shown in FIG. 1;
FIG. 4 is a top plan view of the housing for a retractable tow strap assembly shown in FIG. 1;
FIG. 5 is a bottom plan view of the housing for a retractable tow strap assembly shown in FIG. 1;
FIG. 6 is a side elevational view of the housing for a retractable tow strap assembly shown in FIG. 1, taken from the right side of FIG. 1; and,
FIG. 7 is a side elevational view of the housing for a retractable tow strap assembly shown in FIG. 1, taken from the left side of FIG. 1.
The broken lines illustrate environmental structure which forms no part of the claimed design.