Bubbler Airlock

The Bubbler Airlock is a must-have tool for homebrewing and winemaking, helping maintain an oxygen-free environment during fermentation. Simply fill with water and insert into a drilled rubber stopper or carboy bung to vent carbon dioxide while keeping airborne contaminants out.

This classic S-shaped “bubbler” airlock produces a satisfying “bloop” sound during active fermentation—a reassuring sign that your beer or wine is fermenting properly. Its clear design allows you to visually monitor fermentation activity and pressure buildup inside the fermenter.

Why Use a Bubbler Airlock? It’s ideal for secondary fermentation where pressure monitoring is helpful, and it’s a favorite among winemakers for its ease of use and consistent results. Works with most fermenters, including carboys, buckets, and conical fermenters.

To Use: Insert the assembled airlock into the opening of a compatible rubber stopper or bung. Always keep the cap on the airlock—it allows gas to escape while preventing contamination or spills if bumped.

Whether you're fermenting a 5-gallon batch of homebrew or aging a homemade wine, the Bubbler Airlock is an affordable and essential piece of equipment that supports clean, successful fermentation every time.

California Proposition 65

⚠ Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.