You're currently on:

Dessalator D300 PRO
Move your mouse over image or click to enlarge

More Views

  • Compact version
  • Compact version control panel
  • Compact version rear view
  • Horizontal control panel version
  • Vertical control panel version
  • Membranes
  • Pump & motor assembly - non-Compact version
  • Pre filter assembly
  • D90 PRO watermaker system

Dessalator D300 PRO

AC Watermaker
300 - 340 lph


Call for our current price

Suitable for large yachts including superyachts and commercial vessels. Available in 400 V 3 Phase AC only. Using larger electrical motors running at de-rate, these robust watermakers are designed for long duty cycles. With a large number of guests or crew on board, there is plenty of water for showering, cooking, washing up, cleaning the decks or being at sea for extended periods of time.

Note: Watermaker outputs vary depending on water temperature and salinity.

Note: the image of the major parts package is that of the D90 with Vertical panel option. The D300 package differs only in that the membrane stack has four tubes not one, the electric motor is larger and the pre-filter assembly uses the taller 20” filters.

Please call us on 01794 523900 for details of our special offers.

Additional Information


As with all Dessalator ranges, your PRO watermaker is supplied as a complete system including:

Automatic fresh water rinsing - keeps your watermaker fresh and clean, prolonging the life of the membranes: it also back-flushes the pre-filter.

Manual fresh water rinsing - a simple turn of a lever means you can give your watermaker an extra rinse when leaving your boat and when returning after a longer period, keeping your membranes fresh, clean and ready to make pure water.

Automatic transfer to tank of fresh product water simplifies operation, letting you relax whilst your tanks are replenished.

Easy to operate - the control panel has a simple on/off, pressure regulator and status lights to indicate clearly what is happening.

Flowmeter - easily monitor the rate of production.

Hourmeter keeps track of hours run to help analyse performance and establish need for service.

Engineered for long life - for ultimate reliability and low maintenance all Dessalator watermakers are over-engineered.

CAT high pressure pumps - the best; for reliability and peace of mind (we have never had one fail!).

Salinity detector - for prompt fully automatic transfer of water to tank and automatic rejection of salty product water if a problem arises.

Automatic shutdown with alarm light if the pressure gets too high and if there is no water flow (pressure too low),

Carbon fibre high pressure membrane tubes avoid issues with corrosion and are strong and light - maximising long life.

High quality Filmtec ® by Dow Corning membranes for long life, increased output and greater resistance to chlorine.

Laser cut stainless steel chassis with anti-vibration mounts for durability and quiet operation.

Designed with extensive periods of operation by the long distance sailor in mind; all Dessalator machines, whilst being fully automatic, have full manual override facility so that you can continue to make water provided you have power. At the other end of the spectrum, they can be linked to a centralised management system e.g. a 'glass bridge' computer system via a serial link.

Tech Specs

Basic spec AC Watermaker
300 - 340 lph
Part Reference Number 111-0429

Call for our current price
Weight (kg) 80.0000
Manufacturer Dessalator, France
Manufacturer's Web Site
Options & Kits

Advance Yacht Systems can supply comprehensive installation kits with various options. We also supply accessories and service kits and spares.

Type High pressure, constant flow
Power Type AC Watermaker
HP pump - power consumption 3 kW - 9 A @ 400 V
(6 A start load per phase)
LP pump - power consumption 750 W - 2 A
HP pump CAT pumps: 237, 247, 277 series
Working pressure 60 - 65 Bar
Membranes Qty 4: Filmtec® (Dow Corning)
SW30 - 2540 - A
Control Panel 500 mm x 340 mm x 300 mm (L x D x H)
Membrane 1170 mm x 330 mm x 110 mm (L x D x H)
Pump and motor 600 mm x 380 mm x 340 mm (L x D x H)
LP pump 290 mm x 260 mm x 240 mm (L x D x H)
Pre-filter 820 mm x 370 mm x 150 mm (L x D x H)
Pre-filter type Twin: 5 micron & 25 micron, 10" Polypropylene wound filaments
Thru-hull fittings (intake) 3/4" Grated scoop type with seacock and strainer
Thru-hull fitting (discharge) 1/2" Plain chromed type with seacock and hosetail
Water supply hose 3 m 3/4" Suction + 6 m 5/8" Suction
Product water delivery hose 8 m 3/8" Delivery
Waste brine discharge hose 8 m 5/8" Delivery
High pressure hoses (adapter included) Self assembly with 2 high pressure connectors pre-installed and 2 to be fitted on installation
Product water output hose Blue polypropylene pipe
Circuit protection 13 A Circuit breaker
Spares included 5 micron pre-filter element
25 micron pre-filter element


Advance Yacht Systems can supply comprehensive installation kits with various options. We also supply accessories and service kits and spares.