Tunze Osmolator Controller - 5017

Replacement for Tunze 3155 ATO.

Controller with Optical and float.

Auto Top Off (ATO) Disclaimer

Most Auto Top Off (ATO) systems have built-in "fail safe" mechanisms; however, caution MUST still be exercised. Your ATO reservoir must hold enough water to replenish evaporation but must not contain more than your system can handle to avoid flooding.

We, nor the manufacturer, cannot be held responsible for any damages incurred.