4 Pcs Fermentation Airlocks and 2 Pcs Bored Rubber Bungs Brewing Airlock for Home Brew Beer Wine Making

• Material: The fermentation airlock is made of high quality BPA-free polypropylene and the stopper is made of food grade rubber, which is a good and helper for the fermentation food.
• Brewing airlock set: 4 x fermentation airlock with cap; 2 x silicone stoppe
• How to use: Just install the silicone stopper/ silicone grommets on the appropriate cap, then insert the fermentation airlock, pour the water into the airlock, and close the lid. The lid prevents the fly insects from crawling into the airlock
• Practical: Brewing airlock makes easier for the fermentation caused it could effectively isolate the air to prevent oxidation and allow the whole fermentation process to be automatic fermentation and exhaust at normal temperature without manual control
• Wide Uses: For wine making, sauerkraut, sealing, fermentation, etc., to meet your daily fermentation needs

4 Pcs Fermentation Airlocks And 2 Pcs Bored Rubber Bungs Brewing Airlock For Home Brew Beer Wine Making Material The Fermentation Airlock Is Made Of High Quality Bpa Free Polypropylene And The Stopper Is Made Of Food Grade Rubber, Which Is A Good And Helper For The Fermentation Food.