silicone bung 9mm hole largesilicone bung 9mm hole large
Silicone Cork with Hole
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Silicone Cork with Hole


Ideal for home brew wine and beer in glass bottles and carboys. It is a premium grade stopper contamination-free product. It will not crack, split, or turn into powder. Also, it is made from lead-free curing process and with food grade material that will last many years. The silicone rubber is very soft and flexible. hence it can be bend into any shape and will make an airtight seal.

This is ideal for 1-3 gallon beer growler and glass demijohns. Works with both S type bubbler and 3 piece airlock.

(52 customer reviews)
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Silicone cork/plug with hole is designed for adding airlock to a standard beer growler bottle and fermenter apertures in lids. This bung made from lead-free curing silicone. Therefore, suitable for all food and beverage contact.


  1. 25mm tapering to 38mm.  It is suitable for growlers and demijohns for 35mm hole internal diameter.
  2. 17.5mm tapering 22.5mm. Suitable for beer bottles or smaller 20mm bottle mouth size holes.

Both corks have an 9mm hold in the center is ideal to attach airlock, blow off tubes, pipes, and other bottle attachments of your projects.

Please sanitize and wet the cork before inserting the airlock. We keep it deliberately tight for an airtight fitting.

52 reviews for Silicone Cork with Hole

Based on 52 reviews
  1. Dinesh Vyas (verified owner)

    not airtight

    • Ankur (store manager)

      dinesh can you try with some packing. what is the size of your hole

  2. SARAVANAKUMAR (verified owner)

    very useful good

  3. Raghuraj K (verified owner)

    Crafted minutely with finest quality materials. Excellent product

    • Ankur (store manager)

      Thank you Raghuraj

  4. Raghuraj K (verified owner)

    Super quality

    • Ankur (store manager)

      Thanks Raghu

  5. Anonymous (verified owner)

    Size a bit big, request to stock smaller size also.

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