ReefPicker
Tunze Osmolator 3Tunze
$250
ATO
Tunze Osmolator 3
ATO

Tunze Osmolator 3

by Tunze

Tunze Osmolator 3 (3154) — German optical ATO with thermal safety circuit for tanks up to several hundred litres; metering pump sold separately.

midOptical
Sensor
Optical
from$250
Compatibility with your build
Start a build to see compatibility for this product
Specifications

The full sheet

Sensor
Type
Optical
What we check

Rules this part takes part in

R5
ATO reservoir
Checks the reservoir covers roughly 14 days of evaporation for your tank size.
See methodology
Works well with

Compatible tanks

Fluval Sea Evo 5
Fluval
Sea Evo 5
5.0 gal
View tank
Innovative Marine 20 NUVO Fusion AIO Long
Innovative Marine
20 NUVO Fusion AIO Long
15 gal
View tank
Eshopps DeskMate Classic
Eshopps
DeskMate Classic
3.8 gal
View tank
Fluval Evo 13.5
Fluval
Evo 13.5
12 gal
View tank
Waterbox AIO 10 Cube
Waterbox
AIO 10 Cube
8.7 gal
View tank
Waterbox AIO 15 Peninsula
Waterbox
AIO 15 Peninsula
13 gal
View tank
Alternatives

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A100
Coral Box
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FZONE ATO with Controller QST2.0
entry
ATO with Controller QST2.0
FZONE
ATO$89
Innovative Marine HydroFill Ti
mid
HydroFill Ti
Innovative Marine
ATO$93
Hydros Triple Optical ATO Kit
entry
Triple Optical ATO Kit
Hydros
ATO$97
JBJ Nano ATO
entry
Nano ATO
JBJ
ATO$109
IceCap ATO EZ
mid
ATO EZ
IceCap
ATO$110
Available in: US, DE, UK, SEReport a data error

Frequently asked

What are the key specs of the Tunze Osmolator 3?

Sensor: Optical.

How much does the Tunze Osmolator 3 cost?

The Tunze Osmolator 3 starts around $250, though prices vary by retailer — see current offers on this page.

Which tanks is the Tunze Osmolator 3 compatible with?

Based on ReefPicker's compatibility checks, the Tunze Osmolator 3 fits tanks including Fluval Sea Evo 5, Innovative Marine 20 NUVO Fusion AIO Long, Eshopps DeskMate Classic. Add it to a build on ReefPicker to check it against your specific tank.