DESC: The 8003 model replaces the 8002 model. Both models use the single gear extraction method, and feature a patented auger that features two stage juice extraction which helps to increase yield over other single stage auger juicers. In addition, there are less parts to clean with the 8003 than with the previous 8001 and 8002 models. This unit is a multiple use appliance that actually does all of its uses very well. Most appliances that are built for more than one use tend to compromise one task or another. But the Omega Model 8003 Nutrition Center excels at all of its functions.