Rubber bung with hole for airlock or tap – fits demijohn and vinegar crock (Ø 29/35 mm)

Tight-sealing rubber bung with a hole for an airlock or tap
A practical rubber bung with a central 9 mm hole – ideal for fitting an airlock to demijohns or as a tight bung for a tap in vinegar crocks. The bung provides a secure and flexible seal that can be used again and again.

Durable replacement for cork bungs
Cork bungs can become leaky over time, but this bung in flexible rubber is long-lasting and ensures a tight fit. It is also easy to clean and can be used for both fermentation and storage.

Easy to fit
To ensure the best seal, we recommend lubricating the bung with a little cooking oil before it is pressed into the bottle or crock. This helps it slide into place more easily and form a completely tight closure.

Specifications
- Material: Rubber
- Base diameter: 29 mm
- Top diameter: 35 mm
- Hole diameter: 9 mm
- Fits: Demijohns, German vinegar crocks and similar containers
- Can be used for both an airlock and a tap

A simple and solid tool for your home production
Whether you brew wine, make vinegar or bottle your own drinks, this rubber bung provides a secure and practical solution that stays tight and can be used again and again.