Pumps and fans of various types and sizes are used in all kinds of restaurant equipment. The main internal component of these pumps and fans is the impeller. The impeller is a rotor blade designed to increase the pressure and flow of air, gases or fluids. A rack is a framework, stand, or grating on or in which articles are placed. Racks are commonly used in restaurants to store ingredients, seasonings, utensils and more. Racks may also serve as components used with larger equipment assemblies. Specifications. Material Stainless Steel. Power 2 HP. Height 1.85 in.. Width 3.6 in.. Length 3.6 in.