Twin Bubbler Airlock

Monitor fermentation while helping protect your brew with the Craft a Brew Twin Bubbler Airlock, an S-shaped fermentation airlock designed for beer, wine, mead, and cider fermentation. This reusable airlock allows carbon dioxide produced during fermentation to escape while helping keep oxygen, dust, and contaminants out of the fermenter.

The S-shaped dual chamber design helps reduce the risk of suction back into the fermenter during temperature or pressure changes. This makes the Twin Bubbler Airlock especially useful for long fermentation projects such as mead and wine, as well as cold crashing beer before packaging.

The airlock includes a vented cap and is compatible with common fermentation vessel setups that use standard drilled stoppers or lids. Its transparent design allows brewers to observe bubbling activity during active fermentation.

Widely used by homebrewers and winemakers, the Craft a Brew Twin Bubbler Airlock provides a reusable fermentation accessory for controlled gas release and fermenter protection.