Product Code: RTZ90336-Bundle
This package includes the Tunze Osmolator Metering Pump, Tunze Osmolator 3 Meter PVC Hose 5000.390, and Inland Seas Citric Acid Pump Cleaner (2 oz). When replacing your pump, you can also replace the PVC Hose. The Citric Acid should be used to clean the water sensor. It will remove calcium and mineral buildup.

Product Code: RTZ31551-Bundle2
This package includes the Tunze Osmolator 3155 Water Level Controller & & Solenoid Valve. The Tunze Osmolator Solenoid Valve 8555.200 replaces the metering pump included with the Tunze Osmolator 3155 Water Level Controller with a 1/4" push connect solenoid valve.

Product Code: RTZ50006
The Tunze Osmolator 3 Meter PVC Hose 5000.390 is replacement hose for the Tunze Osmolator 3155 Water Level Controller and the Tunze Osmolator 3152 Nano Water Level Controller. 3 meters long.

Product Code: RTZ50003
The Tunze Osmolator PVC Hose 5000.390 is replacement hose for the Tunze Osmolator 3155 Water Level Controller and the Tunze Osmolator 3152 Nano Water Level Controller. 9 meters long.

Product Code: RTZ90336
The Tunze Osmolator Metering Pump 5000.020 is a replacement for the pump that comes with the Tunze Osmolator 3155 Water Level Controller and the Tunze Osmolator 3152 Nano Water Level Controller.

Product Code: RTZ31504
Controlled Power Socket for the Tunze Osmolator 3155 Water Level Controller. The Tunze Controlled Power Socket connects any brand of pump to the Tunze Osmolator 3155 Water Level Controller. In the Osmolator and Osmomat, the enclosed low-voltage centrifugal pump can be replaced by this switched socket outlet in combination with a more powerful pump.

Product Code: RTZ90706
The Tunze Osmolator Solenoid Valve 8555.200 replaces the metering pump included with the Tunze Osmolator 3155 Water Level Controller with a 1/4" push connect solenoid valve. This is ideal for those who have a gravity based automatic top off system or who would like to use the Osmolator to control an RO System.

Product Code: RTZ31521
The Tunze Osmolator 3152 Nano Water Level Controller is the little brother of the Tunze Osmolator 3155 one of the industry’s most trusted automatic water top-off devices. Designed specifically for smaller aquariums, roughly 50 gallons and under, the Osmolator Nano 3152 is a slimmed down version of the full sized 3155.

Product Code: RTZ31551
The Tunze Osmolator 3155 is one of the safest ATOs available. It utilizes an electronic eye sensor to monitor water levels and a backup float switch sensor with an optional audible alarm. The controller protects the quiet metering pump from running dry and reports an empty storage tank.

Product Code: RTZ31551-Bndl
This package includes both the Tunze Osmolator 3155 Water Level Controller and the Tunze Osmolator 3155 Water Level Controller Controlled Power Socket.

Product Code: RTZ90304
The Tunze Osmolator Support is needed when the glass/acrylic is too thick for the magnets that hold the Osmolator sensors in place.

Product Code: RTZ41200
The Tunze Osmolator 3 Water Level Controller3 includes everything you need for installation (except ATO reservoir) with no software setup required. With its optical and thermal sensors, it ensures precise water level control and protection against overfilling—all within a compact design.

Product Code: RTZ34300
The Tunze Multi Tube Holder 3154.555 has four hose holders/mounting clamps. It can be used with the Tunze Osmolators or dosing pumps, such as the Kamoer Dosers. For hose diameters from 6 to 7 mm (0.236" - 0.276"). Attaches to panes up to 0.866" thick.

Product Code: RTZ27500
The Tunze Turbelle High Jet 5000.021 Pump is a replacement dosing pump with safety extra low voltage 12 V DC for Osmolator® nano 3152 and Osmolator 3155. This is NOT a direct replacement for the pump that comes with the 3152 and 3155. It's a higher quality pump, and it should last longer than the original pump. User Manual (pdf in new window).