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. It includes a processor-based anti-overfill system which turns the pump off if after five minutes of filling the required level has still not been reached.

• User Manual
• Includes the control unit, low voltage (6V) pump, power adapter, 3m hose, magnet mount and protective cover
• For aquariums up to 50 gallons