Stopper Thermowell

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Stainless Steel Stopper Thermowell. A #6.5 Stopper with a custom, 15" Stainless Steel Thermowell attached.

These work great in 3, 5, 6 and 6.5 carboys, giving you a place to put your temperature probe so that you can measure the actual temperature of your fermenting wort, giving your temp controller the best chance of keeping fermentation temperatures ideal.