Stainless steel interior and exterior, aluminum back. The electronic control system makes it easy to adjust the temperature set point and defrost frequency. A removable installation board makes it easy to access the condenser coil for cleaning and service. These units use HYDRO-CARBON R290 refrigerant, which is environmentally friendly and more efficient than R134a/R404a refrigerant. Stainless steel top equipped with a marine edge enables the unit's top to contain drips and spills for easy cleaning. Equipped with heavy-duty pull handles for durability. Includes pre-installed heavy-duty casters with brakes. Has 2 Full (1/6 size) condiment food pan capacity. Refrigeration system keep food at safe temperatures between 33°F - 41°F