This Buchi Rotavapor R-3000 Variable Speed Rotary Evaporator is in used condition, has been tested and all components listed are guaranteed to be functional. This item came from a local lab that had surplus equipment. We urge customers to view all photos as they show overall condition, included accessories and functionality. PLEASE NOTE: The included glass assembly appears to be glass assembly C. Assembly is only partially complete due to missing evaporating flask and cold trap inner body. Both items are fairly inexpensive and easily obtained online. These missing items are reflected in the list price. Also note that there is some residue that has accumulated on the water bath digital readout as seen in photo #5. We will be happy to provide additional information as well as photos so please feel free to contact us with any questions.