Auto Top Off Kit (Version 2)
The ATKv2 (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation. The kit includes:
- FMM Module (Runs without an Apex!)
- Pre-assembled water level mechanism with:
- Magnetic acrylic mount (works up to 1/4″ glass/acrylic)
- Two (2) optical water level sensors (Version 2)
- Float valve
- 90 degree tubing fitting
- PMUP ATO Pump (Version 2)
- 24V 36W power supply
- 4m of orange RO tubing
- 3/8″ > 1/4″ push-fit adapter fitting
- 1/4″ > 1/4″ push-fit siphon break
- Set-screw for non-float-valve applications
| Component | Specification |
|---|---|
| FMM Module | Runs independently without Apex |
| Water Level Sensors | 2 optical sensors, Version 2 |
| Pump | PMUP ATO Pump (Version 2) |
| Power Supply | 24V 36W |
| Tubing | 4m orange RO tubing |
| Adapters | 3/8″ to 1/4″, 1/4″ to 1/4″ siphon break |
FAQ
Can the FMM Module work without the Apex system?
Yes, the FMM Module is designed to run independently without the Apex system.
What is the maximum glass or acrylic thickness supported by the magnetic mount?
The magnetic acrylic mount works up to 1/4 inch thickness.
Is the pump compatible with all types of water tanks?
Please contact customer service
Edward Ellison –
The ATKv2 has been running smoothly for three months. The setup was straightforward and the sensors detect water level accurately. No manual refills needed. Works well with my 100-gallon tank.
Carolyn Robertson –
Installed it last week and it’s already saving me time. The float valve and sensors respond quickly. Only minor adjustment needed for tubing alignment.
Lily Fisher –
Great value for the features. The pump runs quietly and the water level stays consistent. I didn’t have to modify any existing parts. Easy to maintain.
Megan Powell –
Works reliably in my reef tank. The optical sensors are more accurate than the older models. Slight delay in response when tank was very low, but otherwise stable.