XP Aqua Duetto Auto Top Off System


The Duetto ATO by XP Aqua is the worlds smallest and most reliable auto top off system for all in one aquarium and nano reef tanks.

Key Features Of This ATO System 

  • Worlds smallest ato sensors
  • Dual over fill protection with optical sensors
  • Ultra precise water level sensor
  • Super fast installation
  • Quiet and reliable pump operation
  • Works will reef casa all in one aquarium models


  • ATO DC Pump Max Head – 8.2 ft
  • ATO DC Pump Flow Rate – 74 gph
  • Sensor Cable Length – 10 feet
  • Pump Cable Length – 69 inches
  • Max Tank Mounting Thickness: 1/2″
  • Power Supply Cable Length: 67 inches

What’s Included?

  • 1x Duetto Optical Controller
  • 1x Power Supply
  • 1x Water Pump
  • 1x Siphon Break
  • 7ft Of Water Tubing