BrewBuilt CoolStix Stopper for Fermonster & PET Carboys

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Item: FE486A
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Regular price $8.21
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Quick Overview

  • This #10 3-hole silicone stopper is used alongside the BrewBuilt CoolStix for Carboys.    

  • The holes are for a 1/2" CoolStix, an airlock, and a thermowell.    

  • The holes measure 0.500", 0.413", & 0.375"    

  • Compatible with Fermonsters and our Plastic PET Carboys.

Please note: the stopper will fit all sizes of Fermonsters, however we only recommend using the 1/2" CoolStix with the 3 & 6 gallon sizes. This is due to dimensional restrictions and cooling power limitations.

Product Overview


This #10 3-hole silicone stopper is used alongside the BrewBuilt CoolStix for Carboys. The holes are for a 1/2" CoolStix, an airlock, and a thermowell.

The holes measure 0.500", 0.413", & 0.375"

Compatible with Fermonsters and our Plastic PET Carboys.

Please note: the stopper will fit all sizes of Fermonsters, however we only recommend using the 1/2" CoolStix with the 3 & 6 gallon sizes. This is due to dimensional restrictions and cooling power limitations.

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