Pump Head

FIG. 1 is a top perspective view of a pump head showing our design. FIG. 2 is a top view thereof. FIG. 3 is a bottom view thereof. FIG. 4 is a left side view thereof, which is the same as a right side view thereof. FIG. 5 is a rear view thereof; and, FIG. 6 is a front view thereof. In the figures, the dash-dot-dash broken lines define the bounds of the claimed design and form no part thereof. The dash-dash broken lines depict portions of the pump head that form no part of the claimed design.