4-Piece Fermentation Airlock, Transparent Plastic Airlocks with Stopper, Fermentation Escape Valve for Brewing Beer, Wine, and Cider

Appearance: S-shaped design, connected by a water trap to prevent oxygen from entering the fermentation tank. The entire fermentation process requires no manual control and can be reused for a long time.

The airlock is transparent so you know exactly when fermentation is complete.

Use: Can be used for brewing beer, wine, cider, fermented sauerkraut, pickles, etc.

Note: All data is measured manually; please allow for a 1-3 cm error due to differences in lighting and display. There may be slight color variations; please refer to the actual item received.