For many tasks in the laboratory, contaminated fluid supernatants have to be aspirated from microtiter plates, petri dishes, cell culture bottles, etc. The Biochem-Vacuucenter BVC 21 by Vacuubrand offers a professional solution. A powerful chemistry diaphragm pump can aspirate even larger quantities of liquid rapidly. The automatic vacuum control eliminates the need for a hand or foot switch. Liquids are transferred to an autoclavable collection bottle. The sterilizable hydrophobic filter protects the pump and the environment. The Vacuuhandcontrol (VHC) hand set accepts many common pipettes and tips and allows comfortable operation by right or left hand. For precise aspiration even of smallest quantities, the aspiration rate can be regulated with microliter precision by thumb-wheel control. The Biochem-Vacuucenter BVC 21 NT Vario offers continuously adjustable aspiration for sensitive or powerful aspiration.