The ornamental design for a door for refrigerator, as shown and described.
FIG. 1 is a perspective view of a door for refrigerator showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; the bottom plan view is a mirror image thereto; and,
FIG. 7 is a bottom perspective view thereof, shown in use condition.
The broken lines show unclaimed subject matter only and form no part of the claimed design. The dash-dot broken lines define the hounds of the claimed design and form no part thereof.