The ornamental design for a refrigeratordisplayunit, as shown and described.
FIG. 1 is a front perspective view showing my new design for a refrigerator
display unit, the portion shown in dotted lines is schematically
representative of a base refrigeration unit forming no part of the claimed
design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom view thereof; and,
FIG. 4 is a left side view thereof, the right side view being a mirror
image.
The characteristic feature of the design resides in a circular perimeter
having transparent surfaces, including its accessing doors.