Zerodis Plastic One Way Exhaust Valve S Shape Bubble Water Seal Valves Airlock for Home Brew Beer Wine Fermentation

【Intelligent control】All of the fermentation process is automatic fermentation without manual control and can be repeatedly used for a long time 【Prevent Pest】Effectively prevents flies flying into the wine/beer with a cover 【Prevent oxidation】It can emit carbon dioxide for honey, white wine, milk wine 【Easy operation】simply fill water into the exhaust valve, insert it to the cover of the brew barrel or rubber plug on the top of the fermentation container and then cover it with the lid 【Fit for any liquor】Suitable for pure fermentation, such as white grapes, honey wine fermentation, red wine secondary fermentation, etc