#11 Drilled Rubber Stopper (Bung) for Fermentation

#11 Drilled Rubber Stopper for Fermentation Strong Seal for the Largest Fermentation Vessels The #11 drilled rubber stopper is designed for the largest carboys and fermentation vessels, providing a secure, airtight seal while allowing gases to escape safely through an airlock. Measuring 55 mm at the top and 48 mm at the bottom, this bung is ideal for heavy-duty fermentations. Built from durable, flexible rubber, it ensures long-lasting reliability batch after batch. Key Features: Dimensions: 55 mm top diameter, 48 mm bottom diameter Perfect Fit: Sized for the largest carboys and fermenters Drilled Hole: Pre-drilled to accept airlocks for fermentation control Durable Rubber: Flexible, 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. Perfect for beer, cider, mead, or wine, the #11 drilled bung offers dependable protection and control for your largest fermenta