Transparent One-way Wine Air Lock Beer Brewing Fermentation Exhaust Valve Home Plastic Beer Making Tool Equipment Airlock Transparent One Way Wine Air lock Features: 1. The advantage of this type of airlock is that they have a smaller chamber, so you can observe the rise in carbon dioxide more closely and therefore the speed of fermentation. 2. They are also handy when you cool the beer, as there is less chance of sucking airlock water back into the fermentation process. If soiled during fermentation, it cannot be cleaned manually. 3. Can be used to create a hermetic seal to allow gas to leak without risking contamination while making beer, wine or anything else. Anti-oxidation: It can be used in the brewery to emit carbon dioxide generated during alcohol fermentation, and to prevent oxidation during the fermentation of homemade beer 4. The s-type airlock is the "OG" airlock for domestic beer and brewing. 5. Automatic fermentation + reusable: can be reused for a long time; 6. Uses: suitable for fermentation process of wine, white wine, beer, red wine, honey, fruit juice, etc. Specifics: Material: Plastic PP Color: As pictures show Size: As pictures show