The whole unit is constructed from 304 stainless steel and installed by sinking into workbenches, keeping the countertop flush without occupying aisle space. It adopts high-temperature and high-pressure spray washing that integrates washing, rinsing and high-temperature disinfection into one process. Users do not need to bend down to place or take tableware for easy operation. Saving both water and electricity, it replaces manual dishwashing and suits back kitchens of small and medium-sized catering businesses including fast food restaurants, wine houses and canteens.