Product Overview
Stopper Thermowell For 3, 5, 6, or 6.5 Glass Carboys
This stopper thermowell is designed to be used with a carboy and a digital thermometer in order to more accurately regulate temperature during fermentation.
A #6.5 stopper makes this perfect for 3, 5, 6, and 6.5 gallon glass carboys that feature a small mouth.