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Airlock - 3 Piece

Airlock - 3 Piece

In Stock
60 day no hassle return policy. Details

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 0.06 LBS
Community Q&A

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Why did you choose this?
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Have used before.
Brian S on Apr 2, 2020
I like the simple ones better
Justin J on Mar 26, 2020
Have used before.
Brian S on Apr 2, 2020
Goes with it
Scott F on Apr 1, 2020
I like the simple ones better
Justin J on Mar 26, 2020
Gotta have airlocks
Timothy D on Mar 19, 2020
Tried and true
Kirby L on Mar 18, 2020
Minimize aeration
Jake K on Mar 11, 2020
Tom Kerr on Mar 3, 2020
Son has one similar
Janet B on Mar 2, 2020
To lock my air up
Reed Harrison L on Feb 25, 2020
Easy to clean.
Gordon G on Feb 19, 2020
Work great
Jackie H on Feb 19, 2020
Because Co2 and O2 need a way out
John F on Feb 12, 2020
ease of cleaning
Kenneth H on Feb 1, 2020
Brian M on Jan 29, 2020
because you can never have too many airlocks
michael m on Jan 28, 2020
Better than any homemade ones.
Darryl G on Jan 27, 2020
Reviews are good
troy s on Jan 11, 2020
I already use this item and works ok
Antonio J on Jan 10, 2020
Justin a on Jan 1, 2020
Valued C on Dec 31, 2019
Justin Griffin on Dec 27, 2019
Celeste H on Dec 16, 2019
Easy to use and clean. I wanted an extra.
Larry J on Dec 12, 2019
Ryan T on Dec 10, 2019
Daniel G on Dec 10, 2019
Looks more easy to clean.
Tom S on Dec 4, 2019
first one snapped when attaching the tube
Anna S on Dec 1, 2019
Need extra
James E W on Nov 30, 2019
mine are gone
Harry T on Nov 5, 2019
Easy to use air lock. Fits will into FE357A fermenter lid.
Richard M on Oct 4, 2019
I dropped my last one
Dustin 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 Garcia 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
Goes with it
Scott F on Apr 1, 2020
Gotta have airlocks
Timothy D on Mar 19, 2020
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
82 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Does the job can’t say anything else
January 22, 2020
3 months ago
basic, easy to clean
Easy ti clean

Sucks the isolation fluid back into the fermenter when the pressures reverse (cold crashing)
December 24, 2019
1 year ago
Works well
Did these things bubble.
User submitted image
Added Nov 14, 2019
November 14, 2019
6 months ago
easy to clean
I use both types I like that these can be cleaned out completely with a brush.
April 20, 2019
1 year ago
Works well. No problems
March 11, 2019
1 year 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
1 year ago
No issues, these work great!
February 24, 2019
1 year 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
1 year 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