Stoppers & Airlocks

Please note: This hood was designed for use with the BrewBuilt CoolStix which has been discontinued. Two of the holes are for an airlock and thermowell, but the third 1/2" hole was intended for the CoolStix and you will need to plug it or utilize it how you see fit. This silicone 3-hole carboy hood is used alongside the BrewBuilt CoolStix. The holes are for a 1/2" CoolStix, an airlock and a carboy thermowell. The holes measure 0.500", 0.413", & 0.375" Compatible with smooth neck carboys only. Does not fit Italian threaded neck carboys.

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Size 1 7/16" - 1 3/4" Fits our 1000ml Flask

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