BUNN 34000 2 Hoppers Ultra Frozen Beverage System, Black/Stainless Steel Frozen beverage dispenser with reversing auger technology for superior mixing and freezing Freeze two different beverages at the same time with 2 separate Hoppers Large 3 gallon (11.4L) hopper for optimum cooling and serving capacity Reversing auger design quickens freeze time and reduces air mixing Refrigeration system internally monitored to ensure long lasting performance