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Tunze Osmolator 3155.000

Tunze Osmolator 3155.000 automatic water top up

Tunze Osmolator 3155.000

Automatic water top-up solution

TUNZE Osmolator 3155 (1) is used to ensure the osmotic stability in freshwater and saltwater aquariums. It guarantees the accurate and safe compensation of evaporated water.

This water level regulator comprises a controller, two sensors, two magnet holders for sensors and numerous accessories. It is suitable for use in cabinet filter plants, in Comline filters or directly on the edge of the aquarium.

TUNZE Osmolator is always fitted with two sensors, i.e. one operating sensor (5) to monitor the water level, and a safety sensor (6) to prevent the aquarium from flowing over. The operating sensor scans the water surface and triggers the controller (7) when the water level drops below the level set. The controller switches on the metering pump (2) which in turn pumps so much water from the storage container into the aquarium until the volume of evaporated water has been replaced. Subsequently, the controller fitted with an electronic time monitor switches the metering pump off automatically. If the operating sensor should fail for technical reasons, the safety sensor prevents the aquarium from flowing over and sounds a warning signal. If the metering pump operates for more than ten minutes, it is switched off for safety reasons.


For aquariums with a volume of over a 1,000 litres (264 USgal.), we recommend the use of the switched socket outlet 3150.11 (8) with recirculation pump Silence 1073.02 / 1073.04 instead of metering pump 5000.02 due to the high evaporation.

Please note that The Tech Den are authorised sellers of Tunze items in Australia and we do not gray import Tunze.

This means when you purchase from us the item comes with the Australian plug attached by the manufacturer and is backed by Tunze Australia and full warranty applies.