The ornamental design for a boomhose apparatus, as shown and described.
FIG. 1 is a side view of a boom hose apparatus for a vehicle showing our new design;
FIG. 2 is a front, top, left side perspective view thereof;
FIG. 3 is a front, top, right side perspective view thereof;
FIG. 4 is a front, bottom, right side perspective view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a front view thereof;
FIG. 8 is a rear view thereof;
FIG. 9 is a top view thereof; and,
FIG. 10 is a bottom view thereof.
The broken line showing of a vehicle in FIG. 1 is included for the purpose of illustrating environmental structure only and forms no part of the claimed design. The dot-dash wavy broken lines are break lines that represent an indeterminate length. The curly brackets also represent an indeterminate length and form no part of the claimed design.