Vacuum pump KNF Neuberger Laboport N820.3 FT.40.18 diaphragm, suitable for use with chemicals, no inlet trap or condenser, 10mbar ultimate vacuum, 20l/min flow rate, ATEX Compliant Internal Atmosphere (please refer to the data sheet for full details), with integral gas ballast valves, oil free, suitable for rotary evaporators and vacuum ovens