The Zymark TurboVap LV Evaporator is designed to work with a variety of tube sizes from 1.5mL to 35mL. It is in good working condition and tested at GenTech. It is a microprocessor-controlled evaporator providing simultaneous concentration of up to 50 samples. Samples are placed in a temperature-controlled water bath (up to 90°C) and rapid evaporation takes place under nitrogen stream by means of a patented gas flow process in the tubes. The parameters can be programmed, and the run is automatically completed. Includes one Tube Rack, Operator's Manual and NINETY (90) DAY WARRANTY. Satisfaction Guaranteed. Tube Rack Available in 13mm or 16mm size. Please specify your preference when ordering.