The ornamental design for a sprayerhead, as shown and described.
FIG. 1 is a front left side perspective view showing the new design for a sprayer head;
FIG. 2 is a rear right side perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a front left side perspective view thereof taken from underneath the design; and,
FIG. 10 is a rear right side perspective view thereof taken from underneath the design.
The broken line showing of a sprayer head is for the purpose of illustrating portions of the article and the broken line showing of a sprayer is for the purpose of illustrating environmental structure, and form no part of the claimed design.