Stoppers & Bungs

Most fermenting vessels require a rubber or foam stopper to hold an airlock in place or seal it up while moving. We carry a variety of sizes for glass and plastic carboys, as well as, gallon jugs and bottles.

Not sure which is the correct stopper for your purposes? Consult our stopper information table below:

Stopper Type Compatible With:
No. 2 Drilled Stopper Standard Beer Bottles
No. 5 Drilled Stopper Big Mouth Bubbler® EVO 2 w/screw-on lid (older EVO 2 models) & Little Big Mouth Bubbler
No. 6 Stopper Drilled or Solid 1 Gallon Jugs
No. 6.5 Stopper Drilled or Solid Glass Carboys, Big Mouth Bubbler® Plastic (5 or 6.5 Gallon) or EVO 2 w/ Universal Lid. Ideal fit is 6 Gallon Carboy.
No. 7 Drilled Stopper 5 Gallon Glass Carboys
No. 10 Drilled Stopper PET Plastic Carboys - 5 or 6 Gallon
Small Universal Stopper - Drilled or Solid Glass Carboys (3, 5, 6, 6.5), Big Mouth Bubbler® Plastic 5 or 6.5 Gallon or EVO 2 w/ Universal Lid.
Medium Universal Stopper - Drilled or Solid PET Plastic Carboys - 5 or 6 Gallon

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