FIG. 1 is a perspective view of the tow line connector showing my new design; FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image thereof; FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof; FIG. 4 is a front elevational view thereof; and, FIG. 5 is a rear elevational view thereof.