All of our stoppers are moulded. They are BPA-free, made out of Food Grade materials. They provide an air-tight seal to carboys, necessary for proper fermentation. They come with molded hole.

Each has a perfect consistency as they are all injection molded.

The quality is comparable to silicone stoppers. They stick perfectly to Glass and PET, even when they are wet, however, to improve the seal between glass carboys and the stoppers is best if both are dry.

  • BPA Free

Maximum Temperature: 70 °C (158 °F).

The sizes available are:
  • Size #2
  • Size #3
  • Size #5.5
  • Size #6
  • Size #6.5
  • Size #7
  • Size #7.5
  • Size #8
  • Size #8.5
  • Size #9.5
  • Size #10
  • Size #10.5
  • Size #11
  • Size #13

To find out sizes see chart.

We have solid bungs as well as bungs with holes.

NOTE: Our bungs can be recycled as they have the plastic recycling symbol #7 . This type of plastic is fully recyclable and environmentally friendly. Should you have any questions about the material and/or any environmentally-related questions please do not hesitate to contact us. We are committed to protecting the environment at any cost.

Note: we do not sell our products directly.

If your local retailer does not carry our products, feel free to e-mail us so we can direct you to the nearest retailer.
If you are a retailer, please let your preferred wholesaler know about your needs.

Some of our products may contain harmful substances according to the state of California. For more information please contact us for each specific product.