Airlocks - S-Type Bubbler and #6.5 Carboy Bung (Pack of 2)

Pack of 2

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.

Come with #6.5 rubber stopper