The BrewBuilt CoolStix is a revolutionary cooling solution for carboys. It is easy to clean, easy to setup, and cools quickly and efficiently. The CoolStix uses a submersible pump to circulate cooling solution and a digital temperature controller to regulate flow. When the controller's temperature probe detects that the fermentation temp is getting too hot, it will power on the submersible pump to run ice water or glycol through the CoolStix. Once the temperature stabilizes, the controller will shut off the pump and stop circulation.

For a complete kit with all the necessary pieces, check out the BrewBuilt CoolStix for Carboys with Pump Kit.