The ornamental design for a carwashequipmentsupport, as shown and described.
FIG. 1 is a perspective view of a carwash equipment support showing my new design;
FIG. 2 is an end view thereof;
FIG. 3 is a side view thereof; and,
FIG. 4 is a top view thereof.
The broken line showing of a base and connecting bars in FIGS. 1–4 is included for the purpose of illustrating environmental portions of the carwash equipment support and forms no part of the claimed design.