The ornamental design for a rainbarrelplanterbox, as shown and described.
FIG. 1 is a front-side perspective view of a rain barrel planter box;
FIG. 2 is a rear-side perspective view of a rain barrel planter box;
FIG. 3 is a left-side perspective view of a rain barrel planter box;
FIG. 4 is a front-side perspective view of a rain barrel planter box;
FIG. 5 is a right-side perspective view of a rain barrel planter box; and,
FIG. 6 is a top-side perspective view of a rain barrel planter box.
As shown in these figures, the cylindrical walls of the rain barrel planter box are transparent. The dot-dash-dot broken lines depict portions of the rain barrel planter that form no part of the claimed design.
The broken lines dividing the interior layers and the broken and stippled lines illustrating the diverse materials within them depict environmental subject matter that forms no part of the claimed design. The broken line illustration of flowers on the top of the rain barrel planter depicts environment that forms no part of the claimed design.