US D403406 S
FIG. 1 is a perspective view of my design for a water purification unit;
FIG. 2 is a left elevational view thereof of which the right side is a mirror image thereof;
FIG. 3 is a back elevational view thereof;
FIG. 4 is a front elevational view of my design for a water purification unit;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a top plan view of the water purification unit.