Airlock - 3 Piece (XL)

Airlock - 3 Piece (XL)

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This oversized 3-piece airlock can hold 50% more water or sanitizer so your airlock is less likely to evaporate dry or get sucked dry. When the temperature drops, your fermenter will suck in solution from the airlock, and if the temperature drop is significant the airlock can be completely emptied. An empty airlock opens the door for airborne spoilants to make their way into your fermenter unchecked. The extra large 3-piece airlock offers your fermenter even more protection, and is especially useful when cold crashing.
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.  Just like our normally sized airlock, our design features many holes in the lid that allow CO2 to escape easily.  Additionally some other airlocks have a cross hatch design on the bottom while our is open to allow 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 tubing will fit onto the center post for use as a blowoff.  This can be handy if you have a really active ferment that is blowing out the top of your fermenter.  
Please Note: Airlock only - stopper not included.
Item # FE370XL
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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Used before
Gil S on Sep 30, 2022
good pricing
Marvin Gochez J on Feb 17, 2022
Used before
Gil S on Sep 30, 2022
S style airlocks are the worst
Patrick S on Apr 13, 2022
good pricing
Marvin Gochez J on Feb 17, 2022
avoid shipping charge
Gerald P on Sep 29, 2021
Works as a blow off with 1/2" ID tube
Tyler Alexander H on Sep 8, 2021
Had a 2 piece that was too small, also want to use blow off tubing
MICHAEL M on Apr 22, 2021
replacing old air lock
Herc on Feb 4, 2021
Protect the ferment from infection
dicgleason on Feb 2, 2021
Bigger is better they say
Rick A on Jan 27, 2021
Need it
Sanad Saudi on Oct 9, 2020
For cold conditioning
Timothy W on Sep 29, 2020
for an easy blow off tube connection
Roxanne L on Jul 30, 2020
David L on Jun 15, 2020
to brew
ShariLayne K on May 23, 2020
Daniel H on Apr 17, 2020
Can always use extras.
Aaron L on Sep 20, 2019
referred by a friend
Linda D on Sep 19, 2019
The XL airlock can conveniently accommodate a blow-off tube.
Daryl M on Apr 20, 2019
Deal of the day
STEPHEN S on Mar 6, 2019
bigger is better
Bob F on Feb 19, 2019
S style airlocks are the worst
Patrick S on Apr 13, 2022
avoid shipping charge
Gerald P on Sep 29, 2021

5.0 / 5.0
1 Review
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1 Star
Rated 5 out of 5
Good cheap airlock
This airlock works well. I like that it is a little larger but still fits in the standard grommets.
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Added Apr 8, 2020
April 8, 2020
over 2 years ago