This AC-powered portable watermaker is ideal for cruisers looking for reliable freshwater production without heavy electrical demands. Producing up to 140 litres per hour, this system is built around a durable triplex plunger pump for efficient operation and low maintenance.
Simple two-part design
The system includes a pressure supply unit (PSU) and a reverse osmosis (RO) unit. The PSU draws in seawater, removes sediment, and pressurizes the water for desalination. The RO unit then extracts fresh, potable water—typically about 20% of the intake volume—while discharging the remainder as brine. Choose from different RO configurations to suit your needs.
Portable now, install later
This system is often installed thanks to its short power cord and consistent output, but it’s designed for flexibility. Start out using it as a portable desalination system, and install it later if you decide on a permanent setup. Ideal for small vessels or owners still refining their onboard layout.
Designed for dependable performance
Whether you’re outfitting a liveaboard cruiser or preparing for extended offshore trips, this saltwater desalinator delivers fresh water when and where it’s needed. A smart solution for boaters who value simplicity, reliability, and control over their freshwater supply.
Output | Up to 140 litres per hour | |
Power Source | 230VAC / 50Hz or 115VAC / 60Hz | |
Power Use | 1,250 Watts | |
Current Draw | 6 Amps 230VAC, 12 Amps 115VAC | |
Motor Type | 1.5HP TEFC induction | |
Plug Type | NEMA 5-15 (USA), CEE 7/7 (Europe), AS/NZS 3112 (Australia), BS 1363 (UK) | |
Power Cord Length | 3 metres (10 ft) 230VAC - 10A cable (1.5mm²), 115VAC - 15A cable (2.08mm²) | |
Sound Level | 62dB at 6 metres (Loud hum) | |
System Type | Two-part | Pressure Supply Unit (PSU) and Reverse Osmosis (RO) Unit |
Pump Type | General Pump / Rainman WMR triplex plunger pump | |
RO Membranes | Two 2.5" x 40" seawater membranes | |
Enclosure Material | Injection moulded polypropylene (PSU), polyethylene reinforced with fibreglass nylon (RO) | |
Operating Pressure | 55 bar (800 psi) | |
Relief Valve | Integrated General Pump 316SS | |
Prefilter | 5 micron | |
Lift Pump | Integrated Rainman bronze flexible impeller | |
Vertical Water Lift | 2 metres (6 ft) | |
HP Hose | 5 metre (16 ft) | |
Product Water Hose | LDPE food grade - 3 metre (10 ft) 10 metre (33 ft) extension (8mm OD) | |
Brine Waste Hose | 3 metre (10 ft), 10mm OD | |
Intake Hose | 5 metre (16 ft) with one-way valve and detachable strainer | |
Impeller | Included Rainman MI813 or Jabsco Profile D 22405-0001-P | |
5 Micron Prefilter | 1 in housing 4 spares (10" x 2.5" pleated poly) | |
Pickle Solution | 1 kg (2.2 lb) sodium metabisulfate powder | |
Valve/Gauge Control | Integrated in RO unit | |
Salinity Sensor | Optional handheld HM Digital COM-80 | |
Flow Meter | Pop-up acrylic analogue flow meter - 160lph/42gph | |
Plumbing Kit | Optional | |
Dimensions - RO Unit | 1,180 x 250 x 130mm (23.6 x 9.8 x 5.1") | |
Dimensions - PSU | 600 x 375 x 270mm (23.6 x 14.8 x 10.6") | |
Control Panel | Not included – can convert to installed unit |