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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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California Proposition 65

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⚠ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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Stopper Thermowell

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