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SANITARY TEMPERATURE CONTROL. Use this stopper thermowell to get your temperature controller probe in contact with your beer without risking contamination
FITS STANDARD GLASS CARBOYS. The included #7 stopper fits most standard glass carboys.
STAINLESS STEEL thermowell to ensure it never rusts and is easy to clean
SILICON STOPPER makes a much better seal than rubber (when properly dried)
Search B01IFVSSRM on Amazon to get a great temperature controller to pair with this thermowell