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 have found the S-bubble airlocks to be much easier than the 3-piece type. They are more reliable and easier to see you have an air-tight container. I had a bunch of the 3-peice type and replaced them with the S-type. And of course, Midwest Supplies is one of my favorite places to get my wine supplies!
They work fine and are easy to clean after a blowout.
They work well. Good well made product. I wash and sanitize by hand .
Easy to use. Works well.
I stocked up on these. as usual Midwest had me a great product at a great price in a timely manner. there is no sweeter sound than a fermenting beer playing this instrument for your ear.