Universal Stopper #10 - With hole - Each

Universal Stopper #10 - With hole - Each

In Stock
Delivers to ( change ) by as part of our Fast & Free Shipping.
Faster Shipping Available. Details.
60 day no hassle return policy. Details

Universal stoppers have a longer taper to help produce a better fit and a snug seal, and a lip which prevents them from falling into your container. Available with a 3/8 inch hole for an airlock, or solid with no hole.

#10 size is recommended for PET carboys.

Item # FE502
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.07 LBS
Community Q&A

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 51 answers
Why did you choose this?
MoreFlavor Store
It's the stopper that fits the lid?
Tom B on Oct 29, 2022
Need more
justine Van S on Oct 12, 2022
It's the stopper that fits the lid?
Tom B on Oct 29, 2022
Nancy Carlson S on Oct 14, 2022
Need more
justine Van S on Oct 12, 2022
Perfect for fermentor
Jim L on Sep 20, 2022
Mark A Williams on Sep 15, 2022
it was offered on the carboy page
Matthew P on Sep 13, 2022
Interesting design and need one for my new carboy
Christine S on Aug 30, 2022
It fits
Damien A on Jun 23, 2022
Reviewers say this is best seal for Fermonsters, which I just purchased.
Jeffery Mark H on May 16, 2022
Michael D U on May 10, 2022
It was one of the choices that look good to use.
Ginger J on May 2, 2022
try out, rubber stoppers usually don't stay in fermenter.
fieldho on Apr 22, 2022
need for airlock
Dan F on Apr 6, 2022
To fit the Fermonster, and so I am sure to have the correct size stopper.
Rick A on Mar 28, 2022
to work with the carboy
Gerald D Z on Mar 28, 2022
Needs to seal for bubbler
Dave on Mar 8, 2022
Only have enough for carboys and I use all of them sometimes.
John M on Feb 11, 2022
for airlock/blowoff
Tyler T on Jan 22, 2022
these are not my first choice but the fermonster won't work without one
Dale on Jan 3, 2022
Fits most carboys and protects edges when using power drills
Norbert. W on Dec 28, 2021
It works
William B L on Dec 8, 2021
So I can add a airlock to the fermonster
D S on Dec 4, 2021
Have others and like them
Frank G on Nov 30, 2021
Mice got to one of mine.
John M on Nov 3, 2021
Need one
Kenneth H on Oct 11, 2021
I need it
Peter B on Oct 8, 2021
Need to replace existing stopper
Paul B on Sep 25, 2021
like this for slipping into containers
Michael B on Sep 22, 2021
Making peach wine
Theo Macris on Aug 27, 2021
Just to get the free shipping
Valued C on Jul 26, 2021
works great for my fermonster
Carl W on Jul 13, 2021
I need one
Craig C on Jul 6, 2021
hoping it goes with the 3 gal Fermonster Carboys
Alison G on Jun 22, 2021
fits carboy
walter c on Jun 15, 2021
goes with the 3gal FerMonster
Heather J on Jun 10, 2021
These fit beautifully in the 3-Gallon Better Bottle Carboy
Mangy Badger on Apr 29, 2021
Easy for keeping beverage airlocked
Nathaniel on Apr 27, 2021
It fits
Shawn M on Apr 23, 2021
James on Apr 13, 2021
For fermenter
Chris K on Apr 2, 2021
Because it fits well in the FerMonster cap.
James Duclos on Mar 31, 2021
Need it
Danny M on Mar 25, 2021
James on Mar 18, 2021
Works well
James Duclos on Mar 16, 2021
for airlock
Gabriela T on Mar 13, 2021
Goes with the fermonster i ordered......
Alexander G on Mar 12, 2021
Need it
Louis H on Mar 5, 2021
Gotta keep the air out
Michael S on Feb 28, 2021
Mead Making
Elizabeth K L on Feb 20, 2021
Nice stopper
Jeff Leepard on Jan 25, 2021
Nancy Carlson S on Oct 14, 2022
Perfect for fermentor
Jim L on Sep 20, 2022
What diameters of openings (in inches) will this fit?
ROY W. on Feb 25, 2022
If you use this with a blow off tube, what size diameter hose do you need?
Christopher Silva on Mar 3, 2021
BEST ANSWER: 5/16 fits quite snug, usually a couple sprays of sanitizer helps ease it in.

4.2 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
It works and would do for most home brewers
Works fine but prefer solid plugs. But works ok.
July 23, 2022
5 months ago
Rated 4 out of 5
Did not fit my small batch fermenter. My fault, I didn't pay close attention to the description.
May 15, 2022
7 months ago
Rated 5 out of 5
Works great. I like the low profile, plus it catch a little if it bubbles out. I have a few in different sizes. If this is the smaller size they can also be used to fit smaller one gallon jugs ( wine bottles) by putting in hot water for a while and making them soft enough to force in the smaller opening. Once they cool they are permanent. I have always used this style and never needed to tied down my airlocks so they don’t pop out.
April 20, 2022
9 months ago
Rated 5 out of 5
It works and fits the Fermonster lid.
April 19, 2021
1 year ago
Rated 5 out of 5
Perfect fit for PET Carboy
The stopper arrived on time and is a perfect fit for the PET carboy that I ordered at the same time.
April 14, 2021
1 year ago
Rated 5 out of 5
Excellent so far and I don't expect any issues. I don't use any old rubber bungs anymore. Very pleased.
February 15, 2021
1 year ago
Rated 5 out of 5
Works great
Fits most every carboy I have. Works great
January 1, 2021
1 year ago
Rated 3 out of 5
Very hard rubber, almost like plastic
This rubber is much too firm to seal in a hole that isn't also tapered the exact same way as the stopper. The very thin straight-walled hole in the lid of my 1gal Fermonster did not seal against this hard rubber stopper.
I didn't test if it fit my airlocks well.
November 2, 2020
over 2 years ago
Rated 5 out of 5
Perfect fit, easy to use
April 11, 2020
over 2 years ago
Rated 5 out of 5
Works good for 10-15gallon barrel bungs
I have a few misc sized barrels with medium bungs that tend to accept #10 - #10, I started buying these because it was obnoxious to figure out what bung goes where, when these are universal. Also fits my Fermonster just fine. Good to have a couple in the brew house.
January 2, 2020