XPAqua Ultimate ATO UATO-400P - Automatic Top Off System


With 2 X dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow us to design a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents your sump from running dry: which is also a first.

The Ultimate ATO’s versatility is also unmatched. An efficient DC pump is included for a standard installation. If you require a larger ATO pump for a remote sump installation, a Socket Switch is included that allows you to run a pump up to 10A (1000W). A solenoid valve is also included for aquariums that are topped off directly with an RO/DI system.

We designed the Ultimate ATO to offer you the ultimate protection with the ultimate convenience.

XPAqua Ultimate Features:

  • World’s first 4-sensor ATOOne sensor for top-off detection
  • Two sensors dual-stage overfill alarm w/ QST Programming
  • One sensor for run-dry protection (also a first)
  • Versatile installation with accessories includedEfficient DC Pump – Standard
  • Socket switch for use with AC pumps (up to 10A)
  • Solenoid valve for use with RO/DI systems
  • Super precise water level control
  • Super easy installation; plug-and-play
  • No programming or adjustments required
  • Works in complete darkness
XPAqua Ultimate Specifications:
  • Power Input : 100-240 VAC, 50-60 Hz
  • Pump : Head : 8.2 ft (250 cm) Flow rate : 74 gph (280 lph)
  • Max Mounting Thickness : 1/2” (12.7 mm)
  • AC Switch : Capacity : 100-240 VAC, 50-60 Hz - Max. Load : 10 A / 1200 W @ 120 VAC ; 10 A / 2400 W @ 240 VAC
  • Solenoid Valve Power Consumption : 6 W @ 12 VDC