Cartridge

FIG. 1 is a perspective view of the cartridge showing our new and ornamental design; FIG. 2 is a top view thereof; FIG. 3 is a bottom view thereof; FIG. 4 is side view thereof; FIG. 5 is an alternate side view thereof; FIG. 6 is a front view thereof; and, FIG. 7 is a rear view thereof. The portions of the cartridge shown in broken lines shown in the figures attached hereto form no part of the claimed design.