This S-bubble airlock is the preferred choice for secondary fermenters, as it allows you to monitor the pressure in the fermenter.
Fill to line with boiled water or sanitizer to create a closed system, which allows CO2 to escape, but doesn't allow air back in to contaminate your wine or beer.
Customer ReviewsWrite a review
what can go wrong with a airlock. Just sending feedback on Bubbler. They work great. I have had no issues with lid and wide mouth makes this stage of brewing easier. Cleaning them is easier than glass but I will not give up glass for 2th fermentation.
Buy something else first and end up buying this eventually anyways. This design is the standard to base all other airlocks from
Works like it's supposed to.
Airlock S-Bubble type