The MAXI PVC fermentation airlock is a reliable helper for home wine, beer, and fruit must production. Thanks to the large bubbles, water evaporates more slowly, maintaining a stable environment in the vessel and protecting the beverage from air contamination.
The tube is made of high‑quality, durable PVC and fits easily into the hole of rubber stoppers for demijohns. Its design allows smooth release of carbon dioxide while preventing backflow and the intake of unwanted substances.