Airlock - 3 Piece

Airlock - 3 Piece

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Airlocks are another one of those necessary pieces of equipment for every homebrewer.  If you ferment in a carboy or bucket this 3 piece airlock is a must! It’s a popular alternative to the triple ripple type of airlock because it can be taken apart and cleaned, and is easy to fill. (However we do sell the triple ripple type (FE371) in case you are used to that type and would like to stay with it.) 
While a simple device not all airlocks are the same. Some other designs have only a couple holes in the plastic lid and this can cause the airlock to pop out during an active fermentation.  Our design features multiple holes that allow CO2 to escape easily.  Additionally some other airlocks have a cross hatch design on the bottom. We have found this more easily leads to Krausen clogs and the airlock being pushed out of the fermenter. Ours is open, allowing Krausen foam to enter the airlock if necesary.  Better to clean your airlock out than to find it laying on the floor next to your fermenter 3 days later.  
Another cool feature of this 3-piece airlock is that 1/2" ID Silicone tubing will fit onto the center post for use as a blowoff. In the cases where you are using a yeast known to produce lots of Krausen (wlp002 from White Labs or 1968 from Wyeast for example) remove the top cover, remove the plastic 'hat', and install the silicone tubing.  Run the silicone tubing into a jar or bucket of water. When fermentation dies back down remove the tubing and replace the hat and cover.
Please Note: Airlock only - stopper not included.
Item # FE370
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.06LBS
Community Q&A

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Why did you choose this?
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Easy to use air lock. Fits will into FE357A fermenter lid.
Richard M on Oct 4, 2019
I lent mine to a friend and need a replacement
Scott H on Sep 25, 2019
Easy to use air lock. Fits will into FE357A fermenter lid.
Richard M on Oct 4, 2019
I dropped my last one
Dustin J H on Sep 27, 2019
I lent mine to a friend and need a replacement
Scott H on Sep 25, 2019
Linda D on Sep 24, 2019
To make wine
Amanda I on Sep 24, 2019
I had a batch of cider spew out all over my floor
Valued C on Sep 21, 2019
Need extras.
Frank G on Sep 21, 2019
Raymond Moreno J on Sep 4, 2019
S-Air locks on backorder
Bruce B on Sep 2, 2019
Always use this style.
Larry L on Aug 31, 2019
For an extra and a good price
Randall V on Aug 29, 2019
My current airlocks are getting old. I have one of these and love it.
Valued C on Aug 28, 2019
they are easy to clean and fit tight
Keith M on Aug 28, 2019
Stephen P on Aug 28, 2019
Need one
Eugene F on Aug 28, 2019
To use with above
Valued C on Aug 28, 2019
used in past
Melanie R on Jul 29, 2019
Read the manual and find out why people need this product
Ahmad L on Jul 18, 2019
Easy clean
Dewey E on Jul 16, 2019
fermenter doesn't come with one
Andy S on Jul 10, 2019
Joey M on Jun 28, 2019
I like the 3 piece air locks and need an extra
Ryan on Jun 27, 2019
Avery A on Jun 18, 2019
Replacement part
Dean D on Jun 5, 2019
need air lock
jake a on May 21, 2019
I prefer these airlocks over the 1 piece dual-reservoir bubbler looking things
Jerrod D F on May 17, 2019
Old one is broken.
Jeffrey L. P on May 15, 2019
Small batch wine ferments
Clifton Lawson on May 1, 2019
Juan L on Apr 27, 2019
For fermenting
James b on Apr 23, 2019
quality and need
Deb H on Apr 23, 2019
Used it before
Ty C on Apr 20, 2019
Provides options
Catherine M on Apr 18, 2019
I prefer the 3 piece airlock because they can be cleaned better than the single piece airlocks
Michael P on Apr 15, 2019
already have one, works great
Dave on Apr 6, 2019
I need it
Jonathan B on Apr 3, 2019
Easy to clean and use
Robert N on Mar 29, 2019
Clean air
Dan M on Mar 27, 2019
Works great with tubing to capture overflow for the first week of fermentation.
andrew k on Mar 24, 2019
need another one
Roger H on Mar 9, 2019
friend recommended
Ben D on Mar 9, 2019
wine making
Rick P on Mar 5, 2019
need it
Kenneth C on Mar 4, 2019
i like it
Michael P on Mar 1, 2019
Valued C on Feb 19, 2019
They work great
Bruce P on Feb 15, 2019
I always lose one of the pieces into the void
Nicholas P on Feb 7, 2019
Steve S on Feb 6, 2019
You can never have enough
Jose J. R on Jan 28, 2019
it is the right tool for the job
Anthony S P on Jan 22, 2019
I dropped my last one
Dustin J H on Sep 27, 2019
Linda D on Sep 24, 2019
What is the trick for adding a blowoff tube? I use a 1/2 in. tube and it breaks the airlock first use, even if i put silicone on it.
Adam Peppas on Oct 18, 2018
BEST ANSWER: Hello Adam - 3 piece airlocks are best to be used when fermentation has calmed, or there is plenty of headspace for krausen. An easy blow-off solution is putting ~5/16" OD hose through a stopper, then into a bucket of sanitizer.

4.7 / 5.0
79 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
easy to clean
I use both types I like that these can be cleaned out completely with a brush.
April 20, 2019
6 months ago
Works well. No problems
March 11, 2019
7 months ago
Simple and Effective
Bought these as a replacement for originals that i have broken, or lost pieces too. They are effective.
March 1, 2019
8 months ago
No issues, these work great!
February 24, 2019
9 months ago
3 piece airlocks work great.
These are my go to Airlocks!
Easy to use and clean.
Been using this type of Airlock for many years.
December 25, 2018
11 months ago
Even being more conversing then the simple S style airlock, I will always take a three piece. These are beautiful. You can tell they are fresh from the factory.
August 7, 2018
1 year ago
Easy to clean easy to use neat to watch
July 8, 2018
1 year ago
Works well, easy to clean
Standard airlock, not much to say other then it works great its my preferred type.
June 26, 2018
1 year ago
Works as advertised. Nothing special. Gets the job done.
April 4, 2018
1 year ago
Airlock 3-piece
These work great, but, if the top ages and breaks, you cannot just get the tops. But when I found that out, I found that you can use the caps from Rx bottles, they fit perfectly.
February 23, 2018
1 year ago