Sumpless ATO2
Model: SATO-202P
Complete ATO & Surface Skimmer for Sumpless Aquariums


  • NEW! Controller programming & circuitry for added system protection
  • NEW! Improved sensor design for longer durability
  • Engineered Specifically for Aquariums without Sumps
  • Dual-Optical Sensor for Precise Operation with Secondary Failsafe
  • Intelligent Pre-Programmed Algorithm
  • Doubles as an Effective Surface Skimmer
  • Media Chamber for Filtration Media
  • Convenient Media Chamber for Filtration Media
  • Plug-and-Play with All Parts Included
  • Works in Complete Darkness

Why Choose Sumpless ATO2 ?

Sumpless ATO2 is the first and only ATO designed specifically for aquariums without sumps. The combination of the sleek overflow box and the innovative dual-optical sensor ATO will help to keep your aquarium topped off and your water crystal clear.

The overflow box easily mounts to any aquarium with its magnetic mount. It acts as a surface skimmer to rid your aquarium of undesirable oily surface skim and doubles as a media reactor for carbon, GFO or any media of your choice.

XPAqua's proprietary dual-optical sensor packs two precise level sensors in one incredibly small package. In addition to keeping your water level constant, the two sensors also work in concert with the intelligent QST programming to help prevent overfilling.

With so many features never seen before in ATO's, the XPAqua Sumpless ATO2 is the ultimate ATO solution for aquariums without sumps.


Installation Diagram:

* Please avoid setting up the sensor in an area with micro bubbles or direct light.

Additional Images: