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Two Hole #10 Brewmaster Silicone Stopper
FE486

Two Hole #10 Brewmaster Silicone Stopper

In Stock
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Description

This stopper has two holes and we use it in the production of our #10 stopper thermowell. It features one 3/8" hole and one 1/4" hole. A racking tube or stainless tube can be inserted into the 1/4" hole with the aid of some lubrifilm, forming an airtight seal, and the 3/8" hole fits an airlock. Even after you wedge all these fittings into it, it still fits a plastic carboy neck! Use this in any configuration you can think of, it'll fit: Airlocks, Thermowells, Racking Canes, and anything else you can imagine!

Item # FE486
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - Out Of Stock
Weight 0.20 LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 12 answers
Why did you choose this?
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making a system to push beer from fermenter to keg (hopefully nooxidstion during the transfer.
Bob P on May 21, 2020
To go with the Fermonster
Michael J on May 9, 2020
making a system to push beer from fermenter to keg (hopefully nooxidstion during the transfer.
Bob P on May 21, 2020
Use temp probe during fermentation
Kevin S on May 18, 2020
To go with the Fermonster
Michael J on May 9, 2020
Seems like the best fitting stopper for the 7 gal. FerMonster Carboy that still allows for a blowoff tube.
Colten Zachary on May 6, 2020
Need to use with thermowell in plastic carboy
Steve N on May 5, 2020
necessary
Robert B on May 1, 2020
Need to use for temp probe
Brian Higgins on Apr 9, 2020
Forgot to get it with the fermonster
Jake K on Apr 8, 2020
Works perfectly with the 15" thermowell!
Michael Postiff on Mar 31, 2020
Add thermowell to get more accurate temp readings!
Greg M on Mar 3, 2020
I just wanted it.
Gordon G on Feb 19, 2020
My goal is to use this as a closed transfer port. We will see if it works.
Michael Postiff on Feb 13, 2020
Reviews
Celeste H on Dec 16, 2019
Use to siphon my wine to jugs
Gregory P C on Dec 12, 2019
To be used in a Louis Pasteur function.
Tom S on Dec 4, 2019
Temperature Control Carboy
Dennis S on Nov 25, 2019
picked to fit fermonster lid opening
Gabriel S on May 21, 2019
Closed transfer loop from plastic carboy with 3.8" racking cane
Matt Hunsworth on May 14, 2019
Closed/low O2 transfer to kegs
Alan S on May 3, 2019
Provides options
Catherine M on Apr 18, 2019
Closed keg transfer from a 7gal fermonster.
Alan S on Apr 4, 2019
Need for air lock and thermowell in PET Fermenter
John S on Mar 15, 2019
To measure temp during fermentation
Donald A on Jan 28, 2019
Set up closed pressure transfer from carboy to keg
Henry on Jan 13, 2019
Required and temp probe opening
Dwane C on Nov 21, 2018
So I can do a blowoff tube and a thermowell
Seth L on Sep 24, 2018
I’m going to start using 5 gal. water jugs to ferment in.
Jason T on Sep 20, 2018
good design
Michael M on Apr 7, 2018
So I can do a closed transfer
Matthew L on Feb 22, 2018
Gotta plug up that fermonster somehow!
Kenneth B on Jan 15, 2018
Use temp probe during fermentation
Kevin S on May 18, 2020
Seems like the best fitting stopper for the 7 gal. FerMonster Carboy that still allows for a blowoff tube.
Colten Zachary on May 6, 2020
Will this work with the fermonster?
Jeremy Payne on Feb 10, 2019
BEST ANSWER: Yes. I am using it with my 7 Gallon Fermonster. Works so much better than traditional stopper which tends to slip when wet. This one is ribbed and locks itself in place ensuring an airtight fit.
Will the 1/4” hole work with 1/4” ID vinyl tubing? I want to use two blowoffs, one being 1/4” and the other 3/8” vinyl tubing.
Colten Zachary on May 3, 2020
BEST ANSWER: The 1/4" hole can accommodate tubing with an outer diameter of up to 5/16" and that will be a very snug fit.
Can I insert a 1/4" carbonation cap and 3/8" racking cane into this? I want to transfer my beer from my 7 gallon plastic fermonster to keg with little oxidation. I haven't seen anyone do it with stoppers before.
James Cruz on Mar 25, 2020
BEST ANSWER: Those pieces would fit through this stopper and you will be able to do what you're thinking of. Please be careful when pressurizing plastic containers and be careful not to put so much pressure that is expands or bursts.
Reviews

4.4 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
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Perfect Fit
Perfect fit for fermonster lid. Great 2-hole stopper for this fermenter
January 22, 2020
Purchased
6 months ago
Great product. I used it when I did the cold crash
December 16, 2019
Purchased
7 months ago
Works Well
These work great. The ridges help keep the stopper in place, and the holes are the perfect size for a thermowell and airlock.
February 4, 2019
Purchased
1 year ago
Too small for smooth-neck carboys
It works, barely, but I've nearly pushed it all the way into the carboy several times now and had to lever it out with a racking cane. If it was just a little larger or had a mushroom top it'd be great. As it is, I will be sticking with the standard rubber stoppers.
July 30, 2018
Purchased
over 2 years ago
Great item!
I couldn't find anything to cap my new Best Bottle until I looked at your website. Great idea . Silicone composition allow thorough cleaning and it should last a long, long time.
June 25, 2018
Purchased
over 2 years ago
Nice quality, needs some attention to detail to be fully functional
Nice quality stopper. Only problem I have with it is the larger hole is drilled a little too large to seal properly when using a racking cane. If the hole was slightly smaller it would be ideal
User submitted image
Added Apr 27, 2018
April 27, 2018
Purchased
over 2 years ago
Dual Hole Silicon Stopper
Great addition to my fermenter adding a thermowell.
April 24, 2018
Purchased
over 2 years ago
Great but...
I wish it was just slightly bigger. To get a tight seal, you have to basically push this down into the neck of the carboy which makes it somewhat tough to remove. Otherwise this is exactly what I was hoping for.
January 24, 2018
Purchased
over 2 years ago