Tunze Osmolator® Universal 3155 Water Level Regulator (Auto Top Off)


Availability: Only 6 left in stock

SKU: HGHG-TUN3155.000 Category: Brand:

High-tech – for a reliable water level in the aquarium

In 1985 TUNZE® invented the automatic refill system for aquariums. At that time, some people regarded this invention as a useless accessory…. but they forgot something very important: sensitive aquarium animals need a constant osmotic pressure within their cells. The Osmolator® (osmotic regulator) is very easy to install and provides its complete functionality in a single compact unit. Only the Osmolator® is able to provide you with the necessary security and reliability, since it is based on the vast experience that TUNZE® has been able to gather throughout the course of many years. 
The Osmolator® will be supplied with low voltage pump, mounting magnets, tubing controller and power supply. You only need a reservoir and water.

The precise water level is ensured by a non-wearing optical sensor and a transistor switch without any moving parts. This sensor is insensitive to soiling, light or magnetic fields.
Its automatic eye recognises the water level precisely, even small waves or level variations cannot irritate the unit.

An independent safety sensor with a separate power supply circuit and relay control ensures reliable overflow protection.

An electronic time controller and current limiter for the pump connected result in a higher operational safety. This unit protects the metering pump against running dry and reports an empty storage container.

All functions are clearly displayed by LEDs; safety messages are also indicated by acoustic signals.


The Osmolator is operated on 11 V safety extra-low voltage.

Osmolator Universal

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.

Weight2.85 lbs
Tunze Osmolator® Universal 3155 Water Level Regulator (Auto Top Off)

Availability: Only 6 left in stock