Auto Top-off

Ships from manufacturer

6 gallons

12" x 8" x 16"

Ships from manufacturer

10 gallons

14.5" x 10" x 16"

Automatically adds water to sump or tank when level drops 1/4". Includes optical sensor, AC adapter, pump, tubing and tubing bracket.

A compact ATO that relies on gravity to automatically refill evaporated water. No electricity is required for opperation.

10x2x2 inches; 2lbs (approx)

With huge features jammed in a tiny package, the Duetto² is the perfect ATO for your aquarium. 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.

All the installation parts are included and a magnetic coupling allows you to easily mount or adjust the dual-sensor. Installation takes just seconds so you can spend less time working on your aquarium and spend more time enjoying your aquarium.

Level keeper - Smart ATO - automatically refills evaporated water in your aquarium.

The level sensor guards the water or liquid level.

The float valve can be attached to any storage tank to automatically shut off the supply to the tank. Use with an hydraulic automatic shut off to shut down your system and stop producing waste water when the tank is full.

The ATK (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!

We designed our ATK – 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.

New Improvements for V2

• New PMUP with improved longevity and reliability
• Improved optical sensors

Water level controller with only one sensor for nano aquariums or small aquariums with up to 200 liters (55 USgal.), placeable into cabinet filter systems or on the edge of the aquarium. Scope of delivery: ready for installation with 11V power supply, low-voltage metering pump, 3m (118 inch) hose, magnet holder for up to 10mm (0.39 inch) glass thickness and a protective cover for the sensor.

Water level regulator with two sensors suitable for use in cabinet filter plants, in Comline filters or directly on the edge of the aquarium.Scope of delivery: Ready for mounting with power supply unit, metering pump, hose, magnet holder for sensors.