#3 Drilled Rubber Stopper (Bung) for Fermentation

#3 Drilled Rubber Stopper for Fermentation

#3 Drilled Rubber Stopper This #3 drilled rubber stopper is a smaller fermentation bung for compatible jugs, flasks, bottles, and small vessels that use an airlock.

Best Uses

• Good for small-batch fermentation, test batches, and small vessels where #3 is the correct fit.
• Drilled center hole works with compatible airlocks and inserted fermentation fittings.
• Useful to keep on hand when rotating multiple small fermenters or trial vessels.

Fit and Setup Notes

Test the fit before filling the vessel. A stopper should seal securely without being wedged so tightly that it is difficult to remove safely.

For related supplies, browse fermenters and accessories, brewing equipment.