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FreeZone Plus 2.5 Liter Freeze Dry System is designed for light sample loads or personal use. Cascade refrigeration can handle samples with low eutectic points. Compact console cabinet's interior has room to accommodate a rotary vane vacuum pump (not included). Epoxy-coated steel exterior. Upright stainless steel collector coil removes 1.8 liters of water in 24 hours and holds 2.5 liters of ice before defrosting is necessary. Features 1/4 hp and 1/3 hp dual refrigeration systems; LCD for display of set up and operating parameters, alarm messages and total number of hours since refrigeration and vacuum were serviced; audible/visual alarm for abnormal system event (power failure, improper line voltage supply, collector temperature above -40° C, moisture in collector, and service vacuum pump; patented moisture sensor; vacuum control and break valve; RS-232 port; one button automatic refrigeration and vacuum start up with manual overrides; collector drain hose; power switch; 3" diameter casters; 3" diameter accessory attachment port; 3' of 3/4" ID vacuum hose and 2 clamps. Vacuum pump, drying accessory and freeze dry glassware are required (not included).