The ornamental design for a handle for paintroller, as shown and described.
FIG. 1 is a front, bottom, right side perspective view of the handle for paint roller of the present invention;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a right side elevation view thereof; the opposite side being a mirror image.
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
FIGS. 2–5 are shown on a reduced scale. The broken line showing of a paint roller illustrates environmental structure that forms no part of the claimed design.