Descriptions:
- Brand New & High Quality
- Color & Size: as per picture shows
- 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.
- This top Quality S type air lock has a top cap with air vent Holes and "max" mark on side.