Spot-Free Rinse

Dometic SeaXchange SXII 1800Z
1800 GPD, 75 GPH, Seawater System

For boats that require larger volumes of reliable water production, Dometic SeaXchange SXII watermakers provide up to 2,200 GPD/8,328 LPD using reverse-osmosis technology to turn seawater into potable water
  • 2-in-1
    Modular or Compact Frame
  • Large, high pressure
    Pump and motor
  • Freshwater flush
    flushes system weekly : 9108919293 (252403039) Visit support page + FAQ

High Performance Meets High Output

The powerful but extremely compact SXII fits anywhere. The 2-in-1 modular or compact frame lets you make the best use of any available installation space. Other features include an automatic freshwater flush, easy-to-use backlit computer controller display and an optional remote control. The high-rejection seawater membranes are commercially available and the system is fully upgradable from 600 to 2,200 GPD/2,271 to 8,328 LPD. Dometic SeaXchange SXII watermakers are made in the USA
  • Durable and reliable
  • Computer controller with backlit display
  • Tank switch input allows for automatic shut of
  • Automatic freshwater flush
  • High-rejection seawater membranes
High Performance Meets High Output
Easy to Use
Easy to Use

Integrated pressure gauges, flow meter, and control panel with backlit display

Vibration-isolation mounts reduce noise and vibration
Vibration-isolation mounts reduce noise and vibration

Noise Reduction


Durable booster pump with 316SS moto shaft

Dometic SeaXchange SXII 1800Z
...and more
    • 2-in-1 modular or compact frame design
    • 316SS flow and pressure components, booster pump and motor shaft, and high-pressure pump
    • TEFC motor with thermal motor protection
    • Upgradable from 600 to 2,200 gpd/2,271 to 8,328 lpd

Seawater Systems

Built for marine reliability, durability and rust resistance, the Dometic SeaXchange SXII Series has a 316 stainless-steel high-pressure pump, 316 stainless-steel flow and pressure components, and 316 stainless-steel boost pump motor shaft. The high pressure pump and the boost pump are the most durable and efficient pumps available. The totally enclosed, fan cooled (TEFC) wash-down duty motor has thermal protection.


SKU number 9108919293 
Model Spot Zero SXII 
Model on label SXII 1800Z SEA 
US Item Name 252403039 
Product Description 1800 GPD, 75 GPH, Seawater System 
Dimensions product depth 40 "
Dimensions product height 24 "
Dimensions product width 47 "
EAN-13 7315091255820 
Dimensions parcel depth 47 "
Dimensions parcel height 24 "
Dimensions parcel width 40 "
Parcel weight 225.3 lbs
WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to


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