{"@context":"https://schema.org","@type":"Product","name":"Medium Universal Stopper - Drilled","image":["https://cdn.shopify.com/s/files/1/2785/6868/files/40490-Medium-Universal-Stopper-Drilled.jpg?v=1761750432"],"description":"

Plastic bung with a drilled hole for airlocks. This universal style has a longer taper than rubber stoppers, for a snug fit and better seal. Fits plastic carboys, Better Bottles and Bubbler PET fermentors. This bung is too large for the Big Mouth Bubbler® universal lid.

Universal bungs have a longer taper than standard rubber stoppers, for snugger fit and better seal. Plus a lip that prevents the bung from falling into carboy. The drilled hole fits an airlock (#7008 or #7010) for fermentation.

Top Diameter at lip: 2.09\"
Top Diameter below the lip: 1.98\"
Bottom Diameter: 1.69\"

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

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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 BMB
No. 6 Stopper Drilled or Solid\n	1 Gallon Jugs
No. 6.5 Stopper Drilled or Solid\n	\nGlass 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 Carboy 5 or 6 gallon\n
Small Universal Stopper - Drilled or Solid\n	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\n	PET Plastic Carboy 5 or 6 gallon\n

California Proposition 65

⚠ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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Medium Universal Stopper - Drilled

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