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CoolStix Stopper for Fermonster & PET Carboys
Details
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"
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.
Specs
| Material | Silicone |
| Hole | Yes |
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