The RS-500D includes automatic low-water shutoff with audible and visual alarms to help protect the pump and heaters from damage when water levels drop too low. A sealed NEMA-rated electrical panel organizes the controls, thermostat and timers while helping protect key electrical components from moisture, steam and shop debris. A neoprene door seal helps reduce water and steam loss, while the interlocking fast-release door latch keeps the wash material inside the cabinet. Heavy-duty non-marring urethane casters make the cabinet easier to position, and the friction-drive turntable system helps reduce potential motor damage during cleaning cycles.