This Eppendorf MR-100 Mobile Phase Recycler is in great condition and was removed from a working environment. This unit came from a local lab that had surplus equipment and is guaranteed to be functional with a 30 day return policy. We urge customers to view all photos as they show overall condition, included accessories and functionality. We will be happy to provide additional information as well as photos so please feel free to contact us with any questions. Please Note: Power supply used in testing and shown in photos is non-OEM. This power supply will be included but is not the original. Also note that listing only includes what is shown in photos and does not include any additional accessories. Designed to automatically reduce solvent consumption in isocratic HPLC applications by recycling the uncontaminated mobile phase. Solvent usage is reduced up to 90%, minimizing the hazardous waste produced in the lab. Unit operates "online" automatically, with no distillation apparatus required. Recycler is compatible with all LC detectors and isocratic analyses. Fully programmable, with three modes of operation: Automatic mode valve position is determined by the detector signal; Remote mode permits control by an external device; Manual mode allows valve control from front-panel pushbuttons. Memory stores up to ten sets of parameters, eliminating the need for reprogramming with each use.