The HD-7W includes a rail kit for optional accessories and is compatible with an optional RJ-45 rolling jack for expanded wheel-service capability. A rugged 4-piece caster kit can also make the lift mobile, giving users the ability to reposition the lift for different garage layouts or service jobs. The electric-hydraulic power system uses a single hydraulic cylinder mounted beneath the runway, while critical lifting components such as airlines, safety latches, and sheaves are enclosed inside the lift columns. The result is a safer, cleaner-looking four-post lift with BendPak’s practical garage-first engineering.