FIG. 1 is a perspective view of a tub bench showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side view thereof, the opposite side being a mirror image of the side shown; and,
FIG. 4 is an end view thereof.
The broken line showing of surface ornamentation in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design.