Use in conjunction our Northern Brewer Dual-Stage Temp Controller and Fermotemp Electric Fermentation Heater for complete control over fermenting temperatures in cool environments. Fits 3, 5, 6, or 6.5-gallon glass carboys. Not compatible with Better Bottles.
Also compatible with the Northern Brewer Dual-Stage Temp Controller, Inkbird Temp Controller, Thermostar®, and Johnson Digital temperature controllers.
*Big mouth bubbler and lid not included.
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