The ornamental design for a tongue and groove for wall panel, as shown and described.
FIG. 1 is a perspective view of a wall panel, illustrating a tongue and groove for a wall panel in accordance with the present invention;
FIG. 2 is a top view of the wall panel of FIG. 1 showing the tongue and groove for the wall panel, the bottom view being identical thereto;
FIG. 3 is a front view of the wall panel of FIGS. 1 and 2, showing the tongue and groove for the wall panel;
FIG. 4 is a rear view of the wall panel of FIGS. 1-3, showing the tongue and groove for the wall panel;
FIG. 5 is a side view of the wall panel of FIGS. 1-4, showing the tongue and groove for the wall panel;
FIG. 6 is an opposite side view of the wall panel of FIGS. 1-5, showing the tongue and groove for the wall panel; and,
FIG. 7 is a top view of a portion of two wall panels engaged with one another, to further illustrate the tongue and groove in accordance with the present invention.
The broken lines shown in the Figures indicate unclaimed subject matter.
Surface shading lines are provided to show surface contour and do not represent surface ornamentation.