The ornamental design for a holster for a hose to a manually operated spraytank, as shown and described.
FIG. 1 is a first perspective view of a new and ornamental design for a holster for a hose to a manually operated spray tank, with the spray tank being shown in phantom lines for environmental purposes only and forms no part of the claimed design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a first side elevation view thereof;
FIG. 5 is a second side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a second perspective view thereof with the spray tank, hose and trigger all being shown in phantom lines for environmental purposes only and forms no part of the claimed design.