Your fermentation process doesn’t just require a durable carboy or bucket for storing your delicious brew. Every home beer brewer knows that you also need a sturdy stopper & airlock to prevent potentially dangerous pressure buildup and to keep unwanted yeast and bacteria out of your fermenter. MoreBeer! carries a wide selection of airlocks and stoppers that will perfectly fit just about any home brewing vessel. Browse airlocks for both carboys and buckets that allow the carbon dioxide produced during fermentation to exit the fermenter slowly and eliminate buildup inside.