Two-stage diaphragm pump in chemically-resistant materials. Throughput 1.7m3/hr, ultimate vacuum 9mbar. Capacity for running up to 3 evaporators simultaneously. Overall 295 x 245 x 185mm W x D x H. Weight 10.5kg. For 230V 50Hz single phase supplies. Requires, but is not supplied with, EV332-39 for operation.