#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 fermentations. Selection and Setup Notes Confirm the vessel opening and stopper size before filling. Sanitize before use and check the seal during active fermentation. For related supplies, browse fermenters and accessories, brewing equipment. #11 Stopper Fit Notes Use a #11 drilled stopper only with vessels where the taper seats securely without forcing it. Sanitize the stopper and airlock before installing them on a filled fermenter. Check fit during active fermentation so pressure does not push a loose stopper out of place. Related supplies: fermenters and accessories, cleaning and sanitizing.
