A small three-piece airlock that allows you to monitor the fermentation process. The perforated cap allows gradual release of carbon dioxide so that the centre section regularly moves up and down. The sealed construction prevents ingress of dirt and flies.

• small model that clearly shows fermentation activity
• suitable for fermentations up to 60 litres
• limited evaporation due to sealed construction
• easy to clean
• dimensions (Ø x H) = 3.5 x 11.5 cm
• suitable for a 9 mm opening