FIG. 1 is a reduced bottom perspective view of the insulation injection hole plug showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view taken from the right side as seen in FIG. 2;

FIG. 4 is a side elevational view taken from the right side as viewed in FIG. 3;

FIG. 5 is a top plan view.

The left side, as viewed in FIG. 2, is identical to the right side as shown in FIG. 3, and the left side, as shown in FIG. 3, is identical to the right side, as shown in FIG. 4.