When filled with water allows CO2 gas to bubble out and prevents air from getting in. Enclosed design allows for slower evaporation from airlock bubble. Package contains 2 Twin bubble airlocks and 2 universal carboy bungs that will fit 3, 5, 6 and 6.5 gallon glass carboys.

This is a drilled Tapered rubber bung for a better seal and holds the airlock securely in place. A curved lip stops the bung from accidentally falling into the carboy. All three rubber stoppers are the same Size and easily fits all 3, 5, 6 and 6.5 gallon glass carboys. These stoppers do not fit plas...

The Kegco 6 gallon glass carboy is the perfect vessel for fermenting 5 or 6 gallon batches. This carboy is constructed of glass making it a preferred container over plastic carboys and buckets for a multitude of reasons. Glass carboys do not hold onto odors after fermentation and do not easily scrat...