The ornamental design for a middleplate for the shower head, as shown and described.
FIG. 1 is a perspective view of the middle plate for the shower head, embodying the new design;
FIG. 2 is a top view thereof;
FIG. 3 is a front view of the middle plate of FIG. 1, the opposite back view, the right side view and the left side view is a mirror image thereto, respectively;
FIG. 4 is the bottom view thereof;
FIG. 5 is reference drawing showing a position of the 6—6 section being taken;
FIG. 6 is the cross-sectional view taken along line 6—6 of FIG. 5;
FIG. 7 is a reference drawing showing the position of the middle plate; and,
FIG. 8 is a reference drawing showing the state of use of the middle plate of the new design, which is an essential part of the new design.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.