#7 Drilled Rubber Stopper for Fermentation Buckets Secure Your Fermentation with the Perfect Fit The #7 drilled rubber stopper is designed to provide a snug, reliable seal for your fermentation vessels. Measuring 36 mm at the top and 30 mm at the bottom, this bung is the ideal size for fermentation bucket lids, ensuring that your fermentations stay protected while allowing gases to escape safely through an airlock. Key Features: Dimensions: 36 mm top diameter, 30 mm bottom diameter Perfect Fit: Specifically sized for standard fermentation bucket lids Drilled Hole: Ready to accept airlocks for secure fermentation control Durable Rubber: Flexible and long-lasting material ensures a tight seal Brewing Applications: Pair this stopper with a Double Bubble Airlock or a Three Piece Airlock to complete your fermentation setup. Whether you’re brewing beer, cider, mead, or wine, this #7 drilled bung makes it easy to maintain a clean, controlled fermentation environment. Selection and Setup Notes Confirm the stopper size before filling the vessel. Sanitize before use and check that the stopper remains seated during active fermentation. For related supplies, browse fermenters and accessories, brewing equipment.
