Engine Driven Water Desalination Systems

These water makers are the perfect seawater to drinking water machines. Every time your boat’s engine runs, the water desalination system will produce large amounts of fresh water for you. At Cruise RO Water and Power, we provide the best-quality water desalination systems on the market at a reasonable price and with warranty included. 


If you’re looking for an efficient seawater to drinking water machine, our engine-driven water reverse osmosis systems are perfect for you. Additionally, we offer the possibility to make every water maker we distribute into a simple water desalination system.


Ensure your boat, yacht, or cruiser always has clean water aboard with our engine-driven water desalination units. Take advantage of all the water around you while cruising and turn it into drinkable water with our desalination devices. The best part is your own engine will power all water production.

Engine Driven Water Maker system from Cruise RO Water and Power


ModelFresh Water Prod.
Boost Pump
Amps 12VDC

* Any Engine-Driven Water Maker can be made into a Simple Water Maker. The simple models SM25ES, SM45ES and SM55ES, do not include the standard remote control panel and mount the system controls on the end of the RO Pressure Vessel. These engine-powered desalination systems are $395 less than engine-driven versions.




One General Pump Company triplex plunger pump with a 316 stainless steel manifold and wetted parts. It also includes solid ceramic plungers and a nickel-plated crankcase mechanically coupled to a dual v-belt electrically engaged clutch. Fitted with a pressure relief valve preset to 950 PSI.

One filament wound fiberglass/epoxy pressure vessel
OneDow Filmtec Polyamide thin-film composite high salt rejection RO Membrane
Two Stainless Steel clamps affixed to fiberglass mounting feet.

Two filament wound fiberglass/epoxy pressure vessel
Two Dow Filmtec Polyamide thin-film composite high salt rejection RO Membrane
Four Stainless Steel clamps affixed to fiberglass mounting feet.

Three filament wound fiberglass/epoxy pressure vessel
Three Dow Filmtec Polyamide thin-film composite high salt rejection RO Membrane
Six Stainless Steel clamps affixed to fiberglass mounting feet.

Two 10” clear filter housings with mounting bracket
One 20 micron pre-filter element
One 5 micron pre-filter element
One12V DC Jabsco centrifugal boost pump

One clear filter housing with mounting bracket
One activated carbon filter element
Two 3-way valves for selecting: normal operation of fresh water rinse from ships tanks or pickling solution.

An anodized aluminum panel with the following system controls:
One 0-1 GPM flow meter
One 0-1500 pressure gauge
One stainless steel product water selector 3-way valve
One stainless steel pressure regulating needle valve
One 12VDC boost pump electrical switch
One 12VDC High Pressure clutch switch
One 0-60 boost pump pressure gage

SM25E – 0-1 GPM flow meter
SM45E – 0-1 GPM flow meter
SM55E – 0.2- 2.0 GPM flow meter

Replaces standard hour meter with on-panel real-time TDS meter display ($200 adder)

30ft of green 1/2″ Polyethylene sea water tubing
30ft of blue 1/4″ Polyethylene product water tubing
30ft of Black 3/8” Polyethylene brine water tubing
40ft of red 1/4″ Polyethylene brine water tubing
25ft of clear braided polyvinyl tubing
One cutter for the water tubing
One 1/2″ male NPT to push connector fitting for connecting to your seawater inlet source
One 1/2″ male NPT to push connector fitting for connecting to your ships water system for fresh water flushing of the water desalination system
Three 1/4″ male NPT to push connector fittings for connecting the brine, product water, and sample water outlet lines to your ships plumbing
Locking clips for all push connector fittings
Electronic copy of the Installation, Operation and Maintenance manual
One filter housing wrench for filter element replacement
2.5 pounds of pickling reagent
One hand-held TDS meter for checking water quality (Not included when purchasing the control panel with TDS digital Display
Two spare 1/2” 90 degree push-to-connect elbow fittings, if needed, to replace the straight fittings which are pre-mounted on the modules for making the system plumbing easier
A second bag of assorted 3/4” tees, fittings, and clamps is provided for the installation of the ¾” components

One 3ft long 3/8″ high pressure braided stainless steel silicone covered hose for connecting the high-pressure pump outlet to the RO pressure vessel.

One 5ft 3/8″ high pressure braided stainless steel silicone-coated hose 

Longer or shorter high-pressure hoses available for an additional $10 per foot.



The below table provides the length, width, height, and weight of the various water desalination system modules. The listed dimensions represent the greatest size measurement to create a box within which the module can be contained. However, as seen in the module photo images, the modules could fit into a smaller space depending upon the installation orientation. These dimensions do not include the room needed for wires or hoses to enter or exit the equipment. All equipment comes with straight fittings. Optional 90-degree fittings are available.

Pump and Clutch10.59.57.524
(SM25): RO Pressure Vessel455615
(SM45): RO Pressure Vessel4510630.5
(SM55): RO Pressure Vessel4515646.5
Prefilter Assembly13.759.7555.2
12V DC Boost Pump6.
Valving and Cleaning Assembly13.5514.55
Remote Control Panel (Standard Hour Meter)
Depth protruding from back of panel
2.875 Depth1111.254.5
Remote Control Panel (Optional TDS Meter) Depth protruding from back of panel3.5 Depth1111.254.75
Optional: Automatic Fresh Water Flush ($649)9.75843

*Please notify us if you plan a 24VDC installation so we can change the standard 12VDC electrical switch for your boost pump in your remote panel.
* Standard Boost pump is a 12VDC self-priming pump.
(Here is a link to a Video we made explaining why we like the 12V DC pump)
* A 120VAC Boost pump option available using 1.5Amp + $200
* A 24VDC Boost pump is available using 6.5Amp + $200



In other words, what you will need to supply: We made a YouTube Video going over the details

In summary:
Raw water through hull and shutoff valve
Raw water sea strainer (we recommend one like this)
Electrical installation wire and breakers for the AC and DC Pumps Mounting screws and bolts for the individual system modules
Zip ties and mounting straps for securing the electrical and water lines That’s it! Everything else we provide with the water maker.

Cruising Consumable Kit

We put together the Cruising Consumable Kit with everything you will need to cut the dock lines and head out cruising for a year or more for 


  • 20 and 5 micron pre-filters
  • Pickling reagent
  • Activated carbon filters
  • High pressure pump crankcase oil

*** The SeaMaker Simple line (SM30S, SM30S) does not come with a remote panel. The Simple water makers simply mount the needed system controls on the RO Pressure Vessel.

To request a copy of the SeaMaker water maker manual with technical specifications
along with detailed installation and operation instructions, click the button below.

Questions? We Are Here To Help.

Email or call and talk to the owners of the Company and the Designers, Rich and Charlie, 7 Days-A-Week. If they are awake, they answer!