*Clear for easy monitoring
*Prevents oxidisation during the fermentation process
*Easy to clean
This S Shape bubble airlock is the preferred choice for secondary fermentertation, it allows you to monitor the pressure.
Fill to line with boiled water/sanitizer.This simple to use airlock device allows carbon dioxide released
during the fermentation process to escape the fermenter without allowing any air to enter and accidentally oxidise your brew/Wine.
2 x S Shape air lock with Grommet