A rubber stopper with a hole is the most convenient way to seal a carboy. The soft material makes it easy to insert the stopper into the neck of the vessel. At the same time, the rubber conforms to the shape of the neck, ensuring a tight seal. The stopper features a hole that allows you to insert a fermentation tube. The product is made of a material that does not react with the ingredients of the mash. This ensures that the stopper will not affect the taste or aroma of the beverage being produced. Our selection includes rubber stoppers in various diameters, meaning you can easily match the stopper to a flask of your chosen capacity.

• Height: 35 mm
• Top diameter: 55 mm
• Bottom diameter: 48 mm