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Regular price $224.95

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The ATK V2 (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation.

The new aquarium hobbyist has many challenges, but none is more annoying than the chore of adding water, every day, to make up for that lost to evaporation (a.k.a. topping off/up). This alone usually makes the automatic top-off (ATO) device the first piece of automation equipment purchased.

The ironic flip side of this decision is that a faulty ATO device is one of the leading reasons for catastrophic aquarium failure, or even worse, flooding of the house or business.

Not all ATO devices are created equal. Sadly, many ATO on the market are made with cheap components, have very little protection against these catastrophes, and are just a nightmare to assemble and install correctly.

An ATO does not have to be both a blessing and a curse!
The Team at Neptune designed their Automatic Top-Off Kit to not only be super-simple to install and use, but it is unique in the market as an ATO device with three layers of redundant monitoring and water-level control. The ATK does the work for you, while at the same time protecting your tank and your home.

If you want a safe ATO system, the Neptune System ATK v2 uses a mixture of optical eyes and a float valve to ensure your tanks water level stays the same while preventing overfills. With the ATK v2 you do not need an Apex Controller since it can be run 100% standalone, however with the addition of an Apex Controller additional features can be unlocked and more accessories can be added to the included FMM module.

  • Plug & Play Operation
  • Includes Powerful 24V DC PMUP
  • Two Optical Sensors With No Moving Parts
  • IQ-Fill Water Run-Time Intelligence
  • Mechanical Float Valve
  • Audible Alarms
  • No Apex Necessary
  • Advanced Featured Unlocked When Paired With Apex Controllers
What's Included?
  • 1x FMM Fluid Monitoring Module
  • 2x Optical Water Level Sensors
  • 1x Float Valve
  • 1x 90° Tube Fitting
  • 1x PMUPv2
  • 1x 4 Meters Orange RO Tubing
  • 1x 3/8" to 1/4" Push Connect Adapter Fitting
  • 1x 1/4" Push Connect Siphon Break
  • 1x Set Screw for Non-Float Valve Applications

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