One Way Exhaust Check Vent Valve Water Sealed Valves for Home Beer Wine Fermentation

Features: Creates a closed system that allows carbon dioxide out and prevents oxygen and harmful bacteria from getting in. Lets fermentation gas out and keeps air from reaching the beer or wine. Very durable, easy to clean and safe to use. Compact and lightweight size, easy to be stored and saves space. Perfect for secondary fermentation, preventing air into the fermentation chamber during ambient temperature changing in the room. This is standard size airlock made to fit any home brew stopper, cork, bung or a grommet with a 3/8in hole. Works great for beer and wine. Specification: Condition: 100percent Brand New Material: PP Height: Approx. 12cm / 4.7in Width (at widest point): Approx. 3.8cm / 1.5in Rod Length: Approx. 3.8cm / 1.5in Rod Width: Approx. 1.1cm / 0.4in Weight: Approx. 21g / 0.7 oz Package list: 1 * Wine Vent Valve Note: 1. This vent valve is made of thin, light plastic and is fragile. Do not drop or apply excessive pressure to it. 2. This product should be used cooperatively with rubber stopper.