The ornamental design for a set of filler supports for a credenza, as shown and described.
FIG. 1 is a front view of a set of filler supports for a credenza, showing my new design.
FIG. 2 is a bottom plan view thereof.
FIG. 3 is a front view in an alternate environment, with the left filler support in retracted position.
FIG. 4 is an enlarged left fragmentary perspective view, the right being a mirror image.
FIG. 5 is an enlarged right fragmentary perspective view showing the support in a retracted position and in a second alternate environment, the left being a mirror image thereof; and,
FIG. 6 is a side elevational view in retracted position in the second alternate environment, the left being a mirror image thereof.
The dotted lines in the figures are environmental elements and form no part of the claimed design.