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.
The drilled hole fits an airlock (#7008 or #7010) for fermentation.
Top Diameter: 2.375"
Bottom Diameter: 1.656"
- Details & Instructions
5.0 / 5.057 ReviewsJuly 16, 2019Purchased
2 months agoCould fit a little tighterIt doesn’t have a tight fit but still seals. So it worksApril 1, 2019Purchased
1 year agoPerfect for a 5 gallon carboy.I ordered this for a 5 gallon plastic carboy. It fit perfectly.December 5, 2018Purchased
9 months agoVery pleased with Midwest supplies!The medium universal stopper Can be used for 5 gallon plastic bottles. That is the only size it fits. I tried ordering in another site and could not find the correct size. After I called Midwest supplies I was able to find the correct size because of the knowledge of the person.October 27, 2018Purchased
11 months agoStays put in my yeast flask.I bought this specifically to use in my 2L yeast flask as a #10 rubber stopper will not stay put. It's working exactly as I planned...stays put and seals nicely.April 25, 2017Purchased
over 2 years agoGreat for 5-gallon carboys!I was challenged to find this size in local stores - and this was recommended by them, so very excited to have these!December 20, 2015Excellent BungI can't believe I used the drilled rubber stopper for so long with my Better Bottles. This is a perfect bung for them. I'm so happy I ordered a couple of them. They fit great and are much easier to deal with than the rubber ones. Highly recommended!June 8, 2014Tight sealThis fits tight in my better bottle brand carboy. _x000D_It holds onto my S type airlock too so it does its job.March 12, 2014Perfect fitThe perfect stopper for your better bottles. It's made of some good, semi-squishy, material that seals well in the bottle neck. These will stain a bit over time with hop oils and sanitizer, but still work like a champ after many uses. Great price and great product.February 21, 2014
- Customer Q&A
Browse 2 questions Browse 2 questions and 1 answerI have a 5 gallon water jug that has a 53 mm cap size. Will this fit?Hi , will this fit a 1 gal. glass Livingston Wine Jug ? ThanksBEST ANSWER: Hi there- I would recommend measuring the diameter of the opening. The dimensions of the stopper are top Diameter: 2.375" and bottom diameter: 1.656." Cheers!