S Series Seawater Desalinator Reverse Osmosis Unit - 6 to 500 kilo litres per day Reverse Osmosis sea water desalinator unit, sometimes called watermakers, for use on ship or shore based installations. Production rate of 6 up to 500 kilolitres per day. Microprocessor control for fully automatic operation including product tank level. Fresh water flush option to extend membrane and equipment life. Heavy duty stainless steel pump, pressure vessels, gauges, fittings and frame for long operational life and maximum reliability.