Carbonation and Line Cleaning Ball Lock Cap - Plastic

Carbonation and Line Cleaning Ball Lock Cap - Plastic

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This plastic ball lock cap features soda bottle threads, allowing you to convert a 1 or 2 liter soda bottle into a convenient travel growler. The ball lock is compatible with both gas and beverage disconnects, so you can charge the PET bottle before you leave the house and dispense on the go. Attach 3/16" or 1/4" ID tubing to the barb to serve as your dip tube and you're all set!

These caps also work great for quickly and conveniently cleaning your draft lines. Mix up a small batch of line cleaning solution in a soda bottle, attach the ball lock cap, and then connect it to your beverage line. Place a bucket below your tap to catch the cleaning solution and open your faucet. Then simply turn the bottle upside down and squeeze it to push solution through your line and out the faucet. You can also choose to pressurize the bottle first, but squeezing the solution through is just as effective.

Fermenting with the FermZilla? This is the same ball lock fitting included with the FermZilla Pressure Kit and it's also compatible with the FermZilla Collection Container. If you use the collection container to add dry hops, attach one of these caps and you'll be able purge the container of oxygen before opening the dump valve to introduce the hops. Attach some tubing and diffusion stone and you can oxygenate your wort through the collection container as well!

The barb is Duotight compatible. If you'd like to use the cap with 8 mm OD EVABarrier tubing, see DUO100.

For a stainless steel option see KG500.


  • Liquid and Gas Ball Lock Compatible
  • Overall Length - 2.5"
  • Barb Length - 7/8"
  • Barb OD - 1/4"
  • Barb ID - 3/16"
  • 28mm PCO 1881 Threads

Kegland Part number: KL10788

Item # FE133
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - Out Of Stock
Weight 0.04 LBS
Community Q&A

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Browse 2 questions Browse 2 questions and 41 answers
Why did you choose this?
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force carbonate "leftover" beer after kegging.
John Y on Sep 16, 2021
Changing up my gas lines on my Kegerator
Cody S on Aug 18, 2021
force carbonate "leftover" beer after kegging.
John Y on Sep 16, 2021
Suggested in a YouTube video.
Nelson T on Aug 24, 2021
Changing up my gas lines on my Kegerator
Cody S on Aug 18, 2021
To use with my Allrounder
Luis S on Jul 28, 2021
O2 purging
John S on Apr 13, 2021
Trying to reduce oxygen exposure during cold side.
Valued C on Mar 27, 2021
Setting up a water carbonation system
Alex L on Mar 10, 2021
DIY counter pressure bottle filler
Matthew S on Mar 2, 2021
For use on my fermenter
Daniel W on Feb 26, 2021
Gas line in / blowoff tube from a Fermzilla
Alexandre A on Feb 8, 2021
For draft line cleaning.
Sean W on Feb 3, 2021
clean lines and pressure fill PET bottles
Brett C on Feb 3, 2021
Use on carboy hood for pressure transfers
William on Jan 26, 2021
Need to attach gas ball lock to tube for counter pressure racking.
Mr Craig L R on Jan 22, 2021
I'm having trouble maintaining a seal with the stainless caps; hopefully these will be better?
Stephen on Jan 18, 2021
easy to clean my kegerator lines
PETER H on Dec 23, 2020
Add stuff to fermenter
Bob T on Dec 13, 2020
hard to find
Carl C on Dec 8, 2020
I've used a similar product for years, but the barb inside is a great plus
William B on Nov 17, 2020
Supposed to workbetter than stainless connectors. Having trouble with stainless connectors leaking now
Robert D C on Nov 4, 2020
To clean beer lines
Valued C on Oct 29, 2020
I have never used these but I think it could come in handy
Charles E on Oct 22, 2020
For cleaning my draft system.
Sean W on Oct 21, 2020
Draft line cleaning
Derek T on Sep 28, 2020
Great option for cleaning beer lines
Michael L on Sep 26, 2020
Recommended by a friend for taking kegged beer places
Malachi B on Aug 22, 2020
Spare for the new fermzilla cap
Marc A on Jul 2, 2020
fits the bottom threads of my fermzilla
Mark Mesrobian on Jul 1, 2020
Could be useful
Geoffrey R Gerdes on Jun 30, 2020
I want to use it as a quick disconnect from my regulator through my kegerator.
Mark Engle J on Jun 26, 2020
good to have extra
aaron w on Jun 26, 2020
This seems indispensable for keg/line cleaning and quick "bottling"
Adrian L Febre on Jun 13, 2020
Great use for pressure fermenting
Raul F on Jun 5, 2020
Love it
Sven G on May 30, 2020
Quick disconnect gas lines to kegerator for easier tank swaps
Michael A on May 17, 2020
Clean picnic taps and counter pressure fill bottles from my kegs
Dan Ozenberger on Jan 20, 2020
To purge the FermZilla collection container.
Ross M on Jan 8, 2020
Easier Cleaning of Beer lines
Eric Bersagel on Jan 6, 2020
To pressure ferment and dry hop with Fermzilla
Wayne W on Dec 5, 2019
the plastic was a good price
Bill D on Nov 25, 2019
Suggested in a YouTube video.
Nelson T on Aug 24, 2021
To use with my Allrounder
Luis S on Jul 28, 2021
Will this fit the sides of the x1 collection jar?
Caleb Miller on Jan 6, 2021
BEST ANSWER: Looks like I should since it fits commercial PET soda/water bottles. The spec for the side port of the collector states “ 28 mm PCO 1881 threaded side ports” which it seems is what those bottle threads are from what I can tell.

4.8 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
works great
works great, would buy again
April 30, 2021
5 months ago
Rated 5 out of 5
Plastic better than the metal
These are easier to get a good seal than the metal ones
April 20, 2021
6 months ago
Rated 5 out of 5
they work as advertised
they work well. good seal, holds pressure
April 1, 2021
6 months ago
Rated 5 out of 5
It’s great to have a few of these around for cleaning etc
March 22, 2021
7 months ago
Rated 5 out of 5
I think these work way better than stainless when utilizing a FermZilla—the seal is tight and there are no O-rings that can fail. And this is after using stainless steel for years.
January 31, 2021
8 months ago
Rated 5 out of 5
Handy for anyone with ball lock equipment.
I use this along with a Sawyer squeeze bag to push hot water and cleaner through my kegerator tubes. It does not leak, although it can be a bit difficult to latch with some of my ball lock connectors. I also have two of these on my Fermzilla All-Rounder. I could probably also use it to fill up brown PET bottles from a keg, but I haven’t tried that yet. Love these.
January 16, 2021
1 year ago
Rated 5 out of 5
Good carbonation cap
Using it for making small batch pop, mineral water and craft cocktails
October 7, 2020
1 year ago
Rated 5 out of 5
A massive improvement on the CarbCap
If you're sick of CarbCaps forming a crappy seal and/or breaking outright, welcome to the future. This puppy interfaces relatively easily with gas and liquid ball locks, forms a very good seal with absolutely no effort (no need to over-tighten whatsoever), and is just a super hand way to, say, run sanitizer through beer line

Grab a few
August 20, 2020
1 year ago
Rated 4 out of 5
Very good product, need more customer service.
These work very well. However it would be great if you would have also included the part numbers for the tubing that fit the this ballock connector.
July 23, 2020
1 year ago
Rated 4 out of 5
difficult to seal
Its good except the bottle must have a perfect top edge, otherwise it won't seal tight.
June 11, 2020
1 year ago