A rubber stopper, also known as a bung or cork, is a small, cylindrical plug made from rubber or similar elastomeric materials. These versatile stoppers are widely used in various industries and applications. They provide an airtight or watertight seal when inserted into the opening of containers, such as bottles, flasks, or test tubes as well winemaking and brewing processes.

Rubber bungs are crucial in laboratories for sealing experimental vessels, and they play a role in winemaking, brewing, and chemical processes, preventing contamination and maintaining product quality. These stoppers are also perfect for microbiological use as they are autoclavable.

The rubber stoppers we have in stock are a tapered design and each one will vary in size. The smaller sizes are available in black while the larger sizes are available in red.