Complete programmable oil-free dry vacuum systems for rotary evaporators and concentrators. Corrosion-resistant PTFE diaphragm vacuum pump systems enable superior control and efficiency for each evaporation. Store up to 5 methods for 2 solvent evaporations. Provides walk-away solvent stripping in flasks up to 5 L. Use 2 torr Model 2028 for solvents with atmospheric B.P. <160o C - rapid DMF stripping at 4 ml/min. Includes keypad controller interface with LED readout. Inlet and exhaust separators protect pump and lab atmosphere.