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 / 5.056 ReviewsCould 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
5 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
7 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, 2014Easier to use than the bigger bungsThey fit well and are easier to use and get an S-lock into.January 31, 2014
- Customer Q&A
Browse 2 questions Browse 2 questions and 1 answerHi , 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!I have a 5 gallon water jug that has a 53 mm cap size. Will this fit?