43/40mm Rubber Stopper for Demijohn Container

White rubber bungs are indispensable sealing accessories for demijohns and compatible containers used in winemaking, brewing, and laboratory contexts. Manufactured from durable, premium-quality rubber, these bungs provide a snug and secure fit that prevents air and contaminants from entering the vessel.

Available in various sizes to fit different container openings (sizes sold separately), their flexible design ensures a reliable seal that preserves the contents’ integrity and enhances the quality of the final product. The clean white colour offers a neat, professional look, suitable for both personal and commercial applications.

In addition to their effective sealing function, these rubber bungs are easy to clean and sterilize, ensuring hygiene and allowing for repeated use. They represent a cost-efficient and practical solution for protecting and maintaining the contents of demijohns and similar containers during fermentation, storage, or experimental procedures, guaranteeing consistently good results.