
AC Watermakers - Generator or Inverter powered
The ECHO Tec. AML/S series seawater desalination system is a well proven cruising equipment for sailing and motor yachts with single phase generators of 1.3 KW or larger. Designed by and for cruisers, these rugged yacht watermakers have been continually improved since their first introduction in 1997. The design has proven its extreme reliability and longevity in more than 40 million combined real world operating hours.
Innovative system features like pH neutralizing post treatment, high-pressure pump noise reduction, O-ring sealed high-pressure connectors throughout the system, field attachable high-pressure hose fittings or easy owners’ installation, together with low purchase/maintenance cost and cruiser friendly, world renowned after sales service make ECHOTec watermakers the sensible choice for boaters anywhere on the planet.
Select your system configuration:
Modular – to fit into the smallest possible space available and for easy access to the system components.
Compact – self-contained in a sleek, lightweight aluminum frame for time saving installation and added system features.


Sargasso Compact – Advanced desalination technology
Because only track records count, ECHOTec Sargasso Compact desalination systems are built without any finicky electronics. Despite many optional system features such as real time salinity monitor, hour meter and automatic fresh water flush timer, all functions are controlled by rugged mechanical components and low voltage electrical circuitry – more reliable and repairable anywhere you go.
Sargasso Compact is the most versatile watermaker available nowadays! Frame, pre-filters and pressure vessels can be separately mounted view drawings. Simply select output, frame configuration, optional features and choice of color scheme for your application and we build Sargasso Compact to your exact technical and esthetical requirements.
Specifications , System Features and Prices
Systems with 40″ membrane vessels
Model | Rated Performance | Membrane | Generator | Amps 115V/ | Amps 230V 50Hz | US$ | US$ Compact |
---|---|---|---|---|---|---|---|
260 - AML - 1 | 13 GPH - 50 L/h | one 40" vessel | 1.3 KW | 5.0 / 2.5 | 3.8 | $5,690 | n/a |
390 - AML - 1 | 18 GPH - 70 L/h | one 40" vessel | 2 KW | n/a | 4.2 | $5,780 | n/a |
690 - AML - 2 | 29 GPH - 110 L/h | two 40" vessels | 2 KW | n/a | 4.2 | $7,260 | $9,075 |
430 - AML - 1 | 21 GPH - 79 L/h | one 40" vessel | 2 KW | 8.4 / 4.2 | n/a | $5,780 | n/a |
780 - AML - 2 | 32 GPH - 123 L/h | two 40" vessels | 2 KW | 8.4 / 4.2 | n/a | $7,260 | $9,075 |
1000 - AML - 2S | 43 GPH - 160 L/h | two 40" vessels | 3 KW | 12.9 / 6.5 | 8.6 | $7,260 | $9,075 |
1200 - AML - 2 | 50 GPH - 192 L/h | two 40" vessels | 4 KW | 16.4 / 8.2 | 9.5 | $7,260 | $9,075 |
1300 - AML - 3S | 55 GPH - 210 L/h | three 40" vessels | 3 KW | 12.9 / 6.5 | 8.6 | $7,980 | $ 10,150 |
1400 - AML - 3 | 60 GPH - 227 L/h | three 40" vessels | 4 KW | 16.4 / 8.2 | 9.5 | $7,980 | $ 10,150 |
1500 - AML - 4 | 70 GPH - 260 L/h | four 40" vessels | 4 KW | 16.4 / 8.2 | 9.5 | $9,080 | $11,295 |
Reverse Osmosis performance varies with the feed water temperature and salinity.
The rated performance is tested at 26ºC / 80ºF water temperature and a salinity of 35000 ppm TDS.
*Also available in 36 VDC, 48 VDC, 90-96 VDC and 180 VDC
**Prices shown do not include shipping, taxes and/or customs duties (if applicable)
Systems with 21″ membrane vessels
Model | Rated Performance | Membrane | Generator | Amps 115V/ | Amps 230V 50Hz | US$ | US$ Compact |
---|---|---|---|---|---|---|---|
AMS - 310 - 2 | 17 GPH - 65 L/h | two 21" vessels | 2 KW | 8.4 / 4.2 | 4.2 | $ 6,485 | $8,385 |
AMS - 510 - 3 | 25 GPH - 95 L/h | three 21" vessels | 2 KW | 8.4 / 4.2 | 4.2 | $ 7,390 | $9,230 |
AMS - 910 - 4 | 42 GPH - 140 L/h | four 21" vessels | 3 KW | 12.9 / 6.5 | 6.5 | $8,140 | $10,095 |
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.
*Also available in 36 VDC, 48 VDC, 90-96 VDC and 180 VDC
**Prices shown do not include shipping, taxes and/or customs duties (if applicable)
Key Features:
- Three years warranty on all parts/components except consumables
- Lifetime warranty on Stainless steel high pressure pump head and R.O. pressure vessel
- Spring loaded automatic pressure regulator for constant working pressure
- Specially engineered, soft vibration dampers on all high pressure pump / motor units
- Extremely silent operation – no charge/discharge noise
- No energy recovery pumps - No electronic circuits
- High rejection R.O. membranes with a three-year pro-rated warranty
- Modular concept for space saving installation
- Stainless steel high pressure fittings are O-ring sealed – no leaking/cracking compression fittings
- Field attachable high pressure hose fittings for clean installations at any hose lengths
- Post treatment pH buffer / hardener element saves up to 50% product water.
- No proprietary equipment - Consumables may be obtained anywhere (except pH buffer element)
- Immediate delivery from stock
- 7 days a week top notch support and after sales care!
AC Watermaker Installation – AML and PRO Series
(ECHOTec. Promotional Video)
DC Watermaker Installation 260-DML-1
(courtesy: Riley and Elayna, SY “La Vagabonde”)


Please enquire for most economical airfreight charges to any international airport
or FedEx door-to-door delivery.
"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." Michael Köhler, MV "Solarwave"


Please contact us with your enquiry/order