RO Seawater Desalination Systems for Yachts and Superyachts

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Designed to reliably endure extreme marine conditions, far from factory-trained service centers, the ECHOTec PRO-Series provides small to medium sized commercial vessels and larger yachts with a dependable source of high quality potable water.



Simple self-installation, if required and minimal maintenance effort and operators’ input are the key features of these field proven watermakers.

Because only track records count, ECHOTec PRO-Series desalination systems are built without finicky electronics or touch screens.
Despite the multitude of standard and optional system features such as real time salinity monitor, hour meter, low/high pressure safety shut off, fresh water flush and failsafe product diverter, all functions are controlled by rugged mechanical components and low voltage electrical circuitry – more reliable and field repairable wherever you go.

For freshwater capacities of more than 7000 GPD/26,500 Liters, the installation of any number of redundant operative BHL desalination modules provides unlimited output. More economical than a single large system, multiple desalination modules provide back up, ease transport as well as installation and reduce the electrical start up load by more than 40%. In times of low water demand, only the modules needed are operated for lowest maintenance effort and ultimate cost efficiency. Upgrades are easy, fast and available in 1800 GPD and 7000 GPD increments.

The newly engineered marine aluminum frame provides tidy appearance while allowing easy access to the system components for maintenance. The semi-modular bulkhead mount systems or the self-contained vertical framed systems are space saving and almost turnkey, so that people without engineering background can install them.

Specifications, System Features and Prices:

(1) For installations where space is limited, the high-pressure pump and the flow/electrical control unit can be ordered in separate modules at no extra charge.

(2) For installations where space is limited, the high-pressure pump, the flow/electrical control unit, the pressure vessel rack and the pre-filters can be ordered in separate modules at no extra charge. See dimensions below. 

PRO Semi-Modular Systems with compact 21” membrane racks

Reverse Osmosis performance varies with the feed water temperature and salinity. The rated performance is tested at 26ºC / 80ºF water temperature and a salinity of 35000 ppm TDS.

Prices shown do not include shipping, taxes and/or customs duties (if applicable).

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 Key Features

  • Self contained or semi modular concept for space saving, fast and easy self installation 

  • All control systems are electro-mechanical – No electronic circuits close to seawater – Low voltage control circuit

  • Spring loaded automatic stainless steel pressure regulator – No leaking needle valves

  • Salinity meter, hour meter and filter condition gauges are standard equipment

  • High pressure hoses with O-ring sealed stainless steel fittings – No corroding or cracking compression fittings

  • RO pressure vessels with O-ring sealed stainless steel high pressure fittings  -  No cracking NPT end plugs

  • Corrosion resistant marine aluminum frame, epoxy primed and polyurethane top coated

  • Widely available commercial size sediment pre-filters (10”x 4.5”, Big Blue) are standard equipment

  • Custom system configuration for tight installations at no extra charge

  • Five years limited warranty on the stainless steel high pressure pump

  • Post treatment pH buffer / hardener element saves up to 50% product water.    

  • No proprietary equipment  -  Consumables may be obtained anywhere (except pH buffer element)

  • 7 days a week top notch support and after sales care!

Electrical Power Requirements:

Bulkhead Mount System (500):

Bulkhead Mount System (700):

Bulkhead Mount System (780):

Bulkhead Mount System (all other models):

Vertical Mount System (3HP Motor):

115/230V 60Hz single phase – 4,2/8.4 amps

 230V 50Hz single phase - 5.4 amps

230V 50Hz single phase - 5.4 amps

115/230V 60Hz single phase – 4,2/8.4 amps

115/230V 60Hz single phase - 8.2 amps at 230V

 230V 50Hz single phase - 9.2 amps at 230V

115/230V 60Hz single phase - 11.2 amps at 230V

230V 50Hz single phase - 11.2 amps at 230V

208-230/460V 60Hz three phase - 5.5 amps at 230V

230/380/440V 50Hz three phase - 3.8 amps at 380V


The desalination system is equipped with all necessary instrumentation, for the control and supervisionof the operation of the unit:

Pressure Gauges:

Flow Meter:


Feed water, system entrance (316SS glycerin filled, Monel tube)

Feed water, high pressure pump entrance (316SS glycerin filled, Monel tube)

RO pressure, (316SS glycerin filled, Monel tube)

Product discharge

Digital product water quality monitor - ppm TDS

The following automatic emergency shut off functions are provided:

Low feed water pressure (e.g. seawater intake or pre-filters clogged)

High RO pressure

Tank full (float switch optional)

Dimensions and Weights:

For installations where space is limited, the high pressure pump and the flow/electrical control unit can also be ordered in separate modules.


Vertical Configuration  (click to view)

For installations where space is limited, the high pressure pump, the flow/electrical control unit, the pressure vessels and the pre-filters of the continuous duty, framed vertical mount system can be ordered in separate modules.

Sample Installation - ECHOTec PRO Series Yacht Watermaker 

Semi-Modular Configuration


Please enquire for most economical airfreight charges to any international airport
or FedEx door-to-door delivery.

"Having recently passed Captain Cook's "Thirsty Sound" inside Australia's Great Barrier Reef it seemed a good time to send a note thanking you for my excellent water maker.  Given the choice I shall never sail without one.  There are surprisingly many boats with your equipment on board and without exception we are all very happy with our water-makers and the excellent and prompt back-up you have given us."

“Since 3 years we have an ECHOTec installed like most cruisers we know. After more than 25.000 liters produced, we as well as all our friends have no problems with your desalination system. Therefore, we have decided to use an ECHOTec watermaker again on our new project: the first circumnavigation on an electro-powered catamaran without sails and any fossil fuel.” Read More Testimonials

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Selection of Superyachts and Commercial Vessels equipped with ECHO Tec. Watermakers


Please contact us with your enquiry/order