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Small Universal Stopper - Drilled


SKU# 7081

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Fits glass carboys, seals easily when wet, and won't fall in.

Plastic drilled stopper. This universal style has a longer taper than rubber stoppers, for a snug fit and better seal.

Top Diameter: 1.56"

Bottom Diameter: 1.156"


Availability: In stock

Drilled Bung for Glass Carboys

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  • Drilled Bung for Glass Carboys
  • Drilled Bung for Glass Carboys
Product Details

Drilled to accept an airlock (#7008 and 7010).

Universal bungs have a longer taper than standard rubber stoppers, for snugger fit and better seal — plus a lip prevents bung from falling into carboy.

This drilled universal bung will work with glass carboys.

Top Diameter: 1.56"

Bottom Diameter: 1.156"

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

Stopper TypeCompatible With:
No. 2 Drilled StopperStandard Beer bottles
No. 5 Drilled StopperBig Mouth Bubbler® EVO 2 w/screw-on lid (older EVO 2 models) & Little BMB
No. 6 Stopper Drilled or Solid1 Gallon Jugs
No. 6.5 Stopper Drilled or SolidGlass 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 Stopper5 Gallon glass carboys
No. 10 Drilled StopperBubbler® 5 or 6 gallon
Small Universal Stopper - Drilled or SolidGlass 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 SolidBubbler® 5 or 6 gallon
Additional Information
Support Documents:No
4.8 / 5.0
46 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Works just as it should. No complaints about it’s cons
April 11, 2018
2 weeks ago
Recommended Process Improvement
Fits snugly in a six-gallon glass carboy, and compatible with 3/16 ID tubing. Works great (and no beer on the ceiling).
February 23, 2018
3 months ago
has to be ordered seperatly from the big mouth bubbler
just got the majority of my brewing supplies in today without realizing that this needs to be ordered separately from the big mouth bubbler
January 26, 2018
2 months ago
Great stopper
Seals perfect and holds the airlocks tight. What else could I say?
November 4, 2017
6 months ago
Bought one to try it out and it fits nicely on the big mouth. Much better than rubber stoppers. I'll be buying more.
August 11, 2017
9 months ago
Great stopper
Only downside are the spots on top where crud can get in. But I think it's worth it for the flexibility. I tried a solid stopper and it wasn't as good.
July 6, 2017
10 months ago
works great
this works really well with the big mouth bubbler.
June 27, 2017
11 months ago
A major improvement over the old rubber stoppers!
Stays in place and doesn't try to slide out. It fits glass carboys and blue lidded big mouth bubblers. I had to by three replacements, because my brew club preferred to use them on their fermenters.
May 27, 2017
12 months ago
Absolutely great for working with carboys or erlynmeyer flasks.
May 8, 2017
1 year ago
Perfect Fit
I use these with my 6.5 gallon Big Mouth Bubbler and they help make a great seal.
March 23, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 7 answers
is this a good choice for the Big Mouth 6.5 gallon bubbler (PLASTIC)?
Thomad B on Jan 4, 2017
BEST ANSWER: I have used these with both the old style screw on lid and the new style push down lid and they work great.
I want to use this for blow off tubing. What size would I need that fits into this?
S B on Dec 27, 2015
BEST ANSWER: The 5/16" tubing will fit VERY tightly into the hole on the stopper, and 5/8" tubing will fit snugly over the center part of those stoppers, making a very good blow-off assembly.

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