15″ Thermowell Stopper
This carboy thermowell is used in conjunction with a digital controller with an external probe (such as an InkBird). It is exceptionally useful during the start of fermentation when the lag between the ambient temperature in the refrigerator and actual temperature in the carboy can vary greatly.
Designed to fit either 3, 5, 6 or 6.5-gallon glass carboys or any other similarly sized opening hole. For larger diameter openings, we also have the #10 2-hole stopper which can be used with this thermowell.
- Material: Stainless Steel 304
- Size: 15" Probe pipe
- Diameter: 1.3" rubber stopper (size #6.5)