Fluid Channel

FIG. 1 is a bottom, rear, left side perspective view of a fluid channel; FIG. 2 is a top view thereof; FIG. 3 is a bottom view thereof; FIG. 4 is an enlarged bottom view of area 4 shown in FIG. 3 ; FIG. 5 is a front view thereof; FIG. 6 is a rear view thereof; FIG. 7 is a left side view thereof; and, FIG. 8 is a right side view thereof. The short dash-long dash broken lines in the drawings depict boundaries of the enlarged views that form no part of the claimed design. The dash-dash broken lines, the areas within them, and the unshaded areas bounded by both broken lines and solid lines illustrate portions of the fluid channel that form no part of the claimed design.