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
I would rather have one of these on the top of my fermentors than the three piece one because they are simple and do the trick.
Buckets and lids fitted for the air locks/bubblers were a complete fail according to M.S. they are not air tight, so why sell them to use with air locks...very disappointed, aside from that I can’t really give a positive or negative review on the air locks...they never bubbled so they could be awesome or junk....idk. I should of just bought the yeast and called it good...hopefully someone else doesn’t misinterpret/ mistake the buckets and lid sealing for use of an air lock.
Works as described
Easy to use