A small starter RO for a producer with a hobby evaporator like a 2x6 or smaller. This RO has one 4"x40" membrane so it should process somewhere between 80-125 gph depending on the sap going into the machine. The wash tank is mounted right on the machine, and the RO is on wheels. This RO is a good little unit for someone just starting out with an RO. Runs on 220 volts.