The ornamental design for a conduitadapter for electricalboxes, as shown and described.
FIG. 1 is a top plan view of the conduit adapter for electrical boxes of
the present invention, the bottom plan view being substantially identical
thereof;
FIG. 2 is a right side elevational view of the conduit adapter for
electrical boxes of FIG. 1, the left side elevational view being a mirror
image thereof;
FIG. 3 is a front elevational view of the conduit adapter for electrical
boxes of FIG. 1; and,
FIG. 4 is a back elevational view of the conduit adapter for electrical
boxes of FIG. 1.