The ornamental design for a reversible tipflag for use with a paintsprayer, as shown and described.
FIG. 1 is a front-top perspective view of a reversible tip flag for use with a paint sprayer showing my new design;
FIG. 2 is a right side elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a rear-bottom perspective view thereof.
The dashed broken lines in the figures illustrate portions of the reversible tip flag for use with a paint sprayer that form no part of the claimed design.