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CoolStix Stopper for Fermonster & PET Carboys


$13.07 & FREE Shipping over $75.
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$13.07

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Return policy: Eligible for Return, Refund or Replacement within 30 days of receipt with Pre-Paid shipping labels.
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Quick Info

  • 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.

  • 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.

Universal Bung with S Shaped Airlock

PACK OF 2 - fits 3, 5, 6 and 6.5 gallon glass carboys

$4.98 Shop Now › ›

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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