Airlock Fermentation Airlock Used For Brewing Wine Beer Kimchi Fermentation Airlock Features: Transparent Airlock: It is sturdy and transparent, allowing you to easily see the entire fermentation process! Multi functional: Airlocks can be used for various fermentation to food. As a brewing airlock, it can be used to brew beer, wine, kimchi, fruit wine, rice wine, broccoli, carrots and ginger, as well as kimchi. Size: Bottom diameter of 1cm, height of 17cm. The quantity is sufficient and the price is reasonable. Good airtightness: The good airtightness of the fermentation airlock makes fermentation easier, effectively isolates the , and prevents oxidation. Working principle: The airlock releases carbon dioxide during the fermentation process and prevents oxygen from entering the fermentation tank. The aerator type airlock is the airlock for secondary fermentation because it can monitor the pressure inside the fermentation tank. Product Product Material: Plastic Size: 17inch