The 30B505 is an s-shaped double bubble airlock with cap that allows gases during fermentation to escape while blocking oxygen from entering the container. Keeping out oxygen prevents wine and beer from contamination. This economically dependable airlock also provides the ability to observe the fermentation progress. Suitable for wine makers and beer makers, this product is the perfect choice for use during secondary fermentation.

Key benefits:
  • Prevents air from spoiling beer or wine
  • Affordable and reliable
  • Clear exterior allows for the easy monitoring of fermentation process
  • Common choice for secondary fermentation
  • Comes with a dust cap


This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility.
Q & A
Customer Questions
Can you ship internationally? Where are you located?
The Cary Company online ordering platform is only set up to ship within the United States. For international shipments, please contact us at 630.629.6600 or Sales@thecarycompany.com, and we will be happy to process your order. Our main warehouse and office are located in Addison, Ill. We also have warehouses in across the United States that you can see here. Thank you for choosing The Cary Company.
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