ReefBreeders ATO Auto Top Off System

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Set It, Forget It, Enjoy It: A Hassle-Free Top Off System

  • A Complete Kit Including Sensor, Pump, Tubing, and More
  • Compact 0.86" Long Sensor
  • Quiet and Reliable Operation
  • IP65 Waterproof Connections


The ReefBreeders ATO is designed for those who value their time and want to focus on the joy of aquarium keeping. This system automates water top-offs, letting you focus less on the mundane task of manual top-offs and more on enjoying your tank inhabitants. With this auto top off system, you can rest assured that your aquarium is receiving the attention it needs, even when you're away.

For improved longevity, the seals on both the sensor and magnet have been improved from the previous version. The included pump has also been improved, resulting in quieter operation. 



Max. Thickness: 5/8"

Sensor Length: 0.86"

Sensor Type: IR

Tubing: 6.5' of 1/4" ID black vinyl tubing

Cord Length: Approx. 6.5' (56" from pump and power supply to the Y-cable. Y-cable has a 20" extension attached)

Rating: IP65


What's Included?

ATO Pump

Magnetically Mounted Sensor


Tubing Holder

Siphon Break

Power Supply

24 Month Manufacturer Warranty

More Information
UPC 705333175868
Max Tank Thickness 5/8 in.
Included Mounting Magnetic
Control Type Preset Plug & Play (No Controls)
Pump Included Yes
Tubing Length 6.5'
Power Cord Length 6 Feet
Warranty 2 Year Manufacturer Warranty
Water Level Detection Infrared Sensor
Safety Features Includes Anti-Siphon Valve
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