The Automatic Top-off Kit (ATK) is a simple, standalone, and complete solution for replacing water lost to evaporation. The ATK does the work for you, while at the same time protecting your tank and your home.

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

Automatic Top-Off Kit is not only be super-simple to install and use, but it is unique as an ATO device with three layers of redundant monitoring and water-level control.

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

Automatic Top Off Kit - ATK - Neptune Systems

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