• Easy Fermentation Monitoring: Spot fermentation activity with ease.
• Smaller Chamber Advantage: Closely observe CO2 rising and fermentation rate.
• Cooling Safety: Reduced risk of sucking airlock water back during beer cooling.
S-shaped airlocks are the original choice for home beer and winemaking. However, they can't be manually cleaned if dirty during fermentation. Many homebrewers prefer 3 - piece airlocks during the active ferment when krausen might enter the airlock. Please note: Stopper Not Included.

This Twin Bubble S - shaped airlock is great for home beer and wine fermentation. It's perfect for homebrewers who want to closely monitor the fermentation process. The airlock doesn't have specific size or weight mentioned, but it has a smaller chamber which helps in observing CO2 rising. Use it when you're brewing your own beer or wine at home to make the fermentation process more observable and safer during cooling.