Universal Rubber Stopper - Size #6-7 (With Hole)

Universal Rubber Stopper - Size #6-7 (With Hole)

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You will love the versatility of this stopper!
The Universal Stopper with Hole fits a 2.8, 3, 5, 6, or 6.5 gallon glass carboy. Also fits our 500ml Erlenmeyer flask, and can be flipped over and used in most bottles! Made with a longer taper from a different material from standard stoppers to minimize popping out when wet.
Please Note: This stopper will not fit in plastic carboys, Better Bottles or Speidel Plastic Fermenters.
Item # FE494
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.05 LBS
Community Q&A

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Why did you choose this?
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Project bird feeder
Francis W on Dec 4, 2021
to ferment wine and beer
Deb L T on Sep 30, 2021
Project bird feeder
Francis W on Dec 4, 2021
need more
Jeff S on Nov 27, 2021
to ferment wine and beer
Deb L T on Sep 30, 2021
pairs with the airlock ,perfect
Jordan H on Sep 24, 2021
Used in the past and works great
Brent J on Aug 24, 2021
Because I ordered the air locks
Jose C on Aug 24, 2021
Trying to find a stopper for my 2L erlimeyer flask
Scott H on Aug 19, 2021
to match plastic bucket
Zafra W on Aug 10, 2021
Well sized for the standard 5 gallon Carboy.
Alex P R on May 6, 2021
Gotta stop the baddies from getting in!
Valued C on Mar 31, 2021
For fermenting mead
ANTHONY E on Mar 31, 2021
Michael K on Mar 31, 2021
To make mead
Andrew Butler on Mar 24, 2021
i thought it would be good.
Rose S on Feb 11, 2021
had to use one of mine to make a blow-off rig after my last batch of stout
James E on Feb 5, 2021
Customer service recommended
Richard B on Dec 23, 2020
Got a 6 gallon carboy for distilled water
Dylan G on Dec 23, 2020
Need them
Jeff L on Dec 23, 2020
Yeast starters
Sean J on Dec 10, 2020
To brew mead
Kale N on Nov 29, 2020
for fermenter bucket I bough
Matt E on Nov 18, 2020
Fits the closure need I have
Joy H on Nov 16, 2020
Using wine vac to degas
barbara b on Oct 31, 2020
other stoppers bought in store do not fit any of my carboys
eric e on Oct 28, 2020
i need one
deanne o on Oct 28, 2020
To seat air lock
kolimatorek on Oct 27, 2020
PRISCILLA C on Oct 22, 2020
Going to get some whino gallon jugs to ferment some apfelwein
John R on Oct 10, 2020
need for the carboy
Paula LaRocca on Sep 26, 2020
Making more wine
Dionne H on Sep 23, 2020
It's unique
Timothy g on Sep 16, 2020
Need it
Ricker O on Sep 16, 2020
I like the reservoir in case of overflow
Janice G on Sep 12, 2020
goes with jug
Alyssa S S on Sep 4, 2020
Mine were getting old and showing their age. Looking forward to using the fresh new stoppers.
Jeff P on Sep 1, 2020
Other kind was popping out
William C on Sep 1, 2020
Old style solid stoppers are a pain and getting old
Bruce S on Aug 24, 2020
Luis on Aug 20, 2020
need it for glass carboy
Brittany A on Aug 15, 2020
These work great on the big mouth bubbler lid
Salazar, E on Aug 6, 2020
To go with the 5 gal glass jug
Sandra S on Aug 5, 2020
it goes with the s airlock
Trevor P on Jul 15, 2020
Tired of wet stoppers popping off and like that they will fit all of my carboys
Willow D on Jul 1, 2020
To use with my 1 gallon hot sauce jug fermenters
Chris S on Jun 29, 2020
David L on Jun 15, 2020
Charles S on May 23, 2020
to brew
ShariLayne K on May 23, 2020
Glass carboy
Stephen W on May 22, 2020
1 gal brewing
Lisa W on May 19, 2020
It works
Richard Scott R on May 16, 2020
need more
Jeff S on Nov 27, 2021
pairs with the airlock ,perfect
Jordan H on Sep 24, 2021

3.9 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 2 out of 5
Very Disappointing
I have several similar stoppers and they all work fairly well... but they're getting old and I wanted to order a couple new ones. I saw the item description said "Made with a longer taper from a different material from standard stoppers to minimize popping out when wet.", which was appealing- so I gave them a shot.

Tried them out for the first time a couple days ago and they are by far the worst stoppers I've ever had. They are a lighter/whiter color, and seem to be a more stiff rubber... and they pop out almost immediately, no matter what I do. I ended up just going back to the older stoppers I had.
May 17, 2021
7 months ago
Rated 2 out of 5
Universal does not mean Universal
Check carefully, I was duped by this “universal” stopper. It only actually fits 2 or 3 different applications, not by any means a “universal” solution. They have listed some things it doesn’t fit on, but it also doesn’t fit on things like growlers.
April 6, 2021
8 months ago
Rated 4 out of 5
good upgrades
So far, so good. These fit all my carboys of different manufacturers. Easy upgrade to replace my old rubber stoppers that looked nasty. No problems making good seals.
January 30, 2021
10 months ago
Rated 5 out of 5
These work great with an airlock on 5 gallon carboys.
September 15, 2020
1 year ago
Rated 5 out of 5
I got these by mistake... and an awesome mistake it was. Since they have that hallow inside, it allows the cork to get deeper n the neck and hold better
August 7, 2018
over 3 years ago
Rated 4 out of 5
I have carboys of several different sizes and styles. This stopper allows me to use them efficiently. Pretty handy, I would say.
February 16, 2018
over 3 years ago
Rated 5 out of 5
I should have read the listing better, this won?t fit plastic carboys. I?ve found another use for it though. It is well made, and I think I like this style of bung better than the solid ones.
October 7, 2017
Rated 5 out of 5
A good stopper. fits in store bought cider jugs.
A good stopper. fits in 64oz and 128oz store bought cider jugs. Felt a little unsure about the seal after multiple times of putting in the airlock. Poured a little sanitizer into the top and no bubbles so I feel that it will seal after multiple reseatings of the airlock. Seems to be a harder material that will withstand the oxidative stress of sanitizer unlike other stoppers and caps that dry and crack.
September 1, 2017
Rated 5 out of 5
Great for 5 gal glass carboy
I have several 5 gallon glass carboys and these stoppers have worked perfectly in them every time. However, I've had a lot of trouble using them with a 6 gallon glass carboy, as the neck is narrower and the stopper hates to slide down and stay in place (wet or dry). 'Sokay, I never liked using that carboy much anyway, and mostly now only use plastic bucket primary and 5 gallon glass secondary. This is a great stopper in my world!
March 7, 2016
Rated 2 out of 5
So So Stopper
I feel I get a better seal from a solid stopper.
May 27, 2015