Carbonation and Line Cleaning Ball Lock Quick Disconnect (QD) Cap - Stainless

Carbonation and Line Cleaning Ball Lock Quick Disconnect (QD) Cap - Stainless

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This stainless steel 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!


  • Liquid and Gas Ball Lock Compatible
  • Disassembles for Easy Cleaning
  • Made from Stainless Steel
  • 28mm PCO 1881 Threads

Kegland Part Number: KL00826

Item # KG500
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.21 LBS
Community Q&A

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Browse 5 questions Browse 5 questions and 65 answers
Why did you choose this?
MoreFlavor Store
Allen C on May 10, 2022
I have one and need another
Robert W on Mar 29, 2022
Allen C on May 10, 2022
This was recommended in the Flex Chamber manual
Kevin Chorzelewski on Apr 27, 2022
I have one and need another
Robert W on Mar 29, 2022
cleaning beer lines, recirculation system
Andrew K on Mar 24, 2022
To create a gelatin rocket.
Ashton Z on Mar 14, 2022
so i can clean my beer lines.
Ken F on Mar 2, 2022
Wanted metal carb caps for FermZilla All Rounder
Eric T on Feb 4, 2022
upgrade from plastic carb caps
Logan R on Nov 23, 2021
help with closed transfer
Jed r H on Nov 20, 2021
fitting for trub collection ball
Marshall L on Oct 28, 2021
To carbonate my own custom sodas for our bar
Laura S on Oct 20, 2021
Need it
Gary P on Oct 15, 2021
Time to clean the kegerator lines
Christopher Hess on Sep 28, 2021
Stainless and price
THe Alchemist - J on Sep 15, 2021
Looks useful.
Daniel C on Sep 15, 2021
Have one of these and I like it and wanted a second
Randal F on Aug 9, 2021
I need it
Attila K on Aug 6, 2021
Soda making
Charles G on Aug 4, 2021
harvest yeast
Anita S on Jul 23, 2021
victor h on Jul 20, 2021
Becaose it is stainless steel
Justin J on Jul 9, 2021
For fermenting under pressure
Ronald P on Jul 7, 2021
For beer to go and for carbonating trial batches before they're kegged
Thomas E on Jun 30, 2021
At a recommendation for building a recirculating draft line cleaner. These were a good price. Most others are nearly double in price.
Bob B on Jun 23, 2021
seltzer water diy
Ron W on Jun 15, 2021
Dallas E on Jun 15, 2021
We have one already and the quality is great, buying two more so we can make more bottles seltzer water at a time!
Penelope A H on May 26, 2021
Low Oxygen Transfers.
Tysen Bibb on Apr 29, 2021
Building fermzilla -pressurized system
Max mead on Apr 26, 2021
To use with Fermzilla 27L to attach bottling stick to collection bottle
Steve M on Apr 23, 2021
Because my pressure kit didn't include it.
James E on Apr 20, 2021
Creating a DIY garden pump beer line cleaning system
Steven B on Apr 17, 2021
good price and they work very well
benjamin l on Mar 30, 2021
Setting up a water carbonation system
Alex L on Mar 10, 2021
Fits back of Kegerator to keep CO2 outside and fit more kegs inside
Valued C on Feb 19, 2021
Going to make a line/faucet cleaner.
mark a on Feb 16, 2021
Closed Transfers
Jason S on Feb 15, 2021
To clean my lines.
Eli S on Feb 12, 2021
Pressure transfers
Sean Smart on Feb 2, 2021
For my Fermzilla. Allow for closed transfer to bright tank
Alexander B on Jan 20, 2021
Extra supplies
Aaron D on Jan 19, 2021
Robust solution to plastic
Robert H on Jan 12, 2021
make carbonated water to enjoy
Valued C on Jan 11, 2021
Making seltzer
Ryan M on Dec 28, 2020
Preferred stainless steel to the plastic CarbonatorCap
David L on Dec 25, 2020
I want champagne for the holidays
Duane S on Dec 21, 2020
Rick B on Dec 15, 2020
my husband wanted it :-)
Lauren K on Dec 14, 2020
Building a line cleaning rig.
JC on Dec 14, 2020
Was requested by the beer brewer guy
Anna L H on Dec 12, 2020
This was recommended in the Flex Chamber manual
Kevin Chorzelewski on Apr 27, 2022
cleaning beer lines, recirculation system
Andrew K on Mar 24, 2022
What is the size of the barb? Is it 1/4"?
James Cruz on Mar 25, 2020
BEST ANSWER: The barb is 1/4" OD and will fit any 1/4" ID tubing. We always recommend using hose clamps when dealing with pressurized systems.
Is the barb permanently attached, or can it be removed?
Daniel Perez on Dec 3, 2020
BEST ANSWER: Assuming they are the same as when I got them last year, they are permanently attached.
The description says that this is compatible with liquid ball lock connectors. Doesn’t fit my liquid ball lock connector for my keg system. I wanted to use it to clean my liquid lines as described in the product description. Is there a trick to pushing it into the the liquid ball lock connector?
David Maas on Jan 8, 2021
BEST ANSWER: Just a bit of sanitizer to lube it and it should work fine
How do you get the spring clip back in after cleaning?
Richard Rang on May 7, 2021
BEST ANSWER: Sorry. I use this for beer line cleaning so have never taken it apart.

5.0 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Good product
I like how these look on the kegerator and they prevent any air loss out of the two tubing portals in the back of the kegerator. They allow for a quick disconnect to the two way manifold. Bought a few parts to make a quick connection to the kegs on the inside.
April 5, 2022
1 month ago
Rated 5 out of 5
Nifty and durable
I use this to clean keg lines and to make seltzer water. About 2 years in, no issues or concern. I've probably made a hundred 2L bottles of seltzer, so it has easily paid for itself several times over. I've only ever used it with (grey) gas connectors, the (black) liquid connectors didn't seem to fit. If you are considering it, I highly recommend it.
February 9, 2022
over 2 years ago
Rated 5 out of 5
Rounder Upgrade
This is a must have for the Rounder
January 29, 2022
3 months ago
Rated 5 out of 5
Great for small batch sodas
Well Made. Easy to use versatile
August 19, 2021
9 months ago
Rated 5 out of 5
Good cheap cleaning option
This is awesome for cleaning tap lines. Just fill a empty 2L up with beer line cleaner, screw this on top and push it through the line. Perfect
April 8, 2021
1 year ago
Rated 5 out of 5
used for a beer gun
I used this to make a QD for a beer gun set up. I just attached a piece of hose from the gun to this and connected the coupler from the CO2 line. Works great.
March 26, 2021
1 year ago
Rated 5 out of 5
Easiest line flushing
I fill an old (clean) soda bottle with cleaner/starsan/RO water and screw this on the top. Attached bev line QD, open tap, squeeze bottle. Easy peasy.

Also works with gas QD so you can carb your favorite concoction in a soda bottle too.
January 7, 2021
1 year ago
Rated 5 out of 5
Great product. Does what it says. Much better than plastic caps
August 9, 2020
1 year ago
Rated 5 out of 5
Does what I need it to do
First thing you notice, this is a hefty part. Does an excellent job fitting on and sealing 2 litre bottles. I was able to swage the end of a 5mm ID EVA tube to fit on the barbed fitting. In the pic below, I don't have the cap on tight (allows the gas to escape) and I'm using the 2 litre as a blow-off container into StarSan. I have an empty 2 litre with a Cap on, and this allows me to harvest CO2, which will be used when I cold crash, so only CO2 gets sucked in.
Ball Lock Soda Cap loosely attached helping act as a blow-off container during High Krausen
Ball Lock Soda Cap loosely attached helping act as a blow-off container during High Krausen
August 4, 2020
1 year ago
Rated 5 out of 5
I love this.
If you just going to your boys house to chill why take a glass growler that can break and it’s hard to flush the co2 out of and that you can’t counter pressure fill. These things are super cool and a great option for traveling with home-brew. I took a few old soda bottles camping with me filled with my home-brew. Keeping a Glass growler in the ice chest is sketchy when that same ice chest is full of all your camping food and drinkS for the family. I clean my soda 2-liters with pbw then rinse and fill with star San I then dump the star San and hit the bottles with co2 and I slowly twist off these attachment until I hear the co2 hiss out. I do that a couple times to purge o2. After that I connect the liquid and do the same slow twisting off of this attachment to counter pressure fill the soda bottles. This allows me to use cheap soda bottles and flush o2 and counter pressure fill. I also like to steal a 2-liter early on in cold crashing to sample my newly fermented beer. I have a kegmenter so I can steal from it easily. I put the 2-liter under 30 psi and shake it to carbonate the sample of my new cold crashing beer. Also the post of these work great with either gas or liquid ball lock disconnects. I keep my 2-liters out of the sun so I avoid skunking of my beer too. Cheers.
In action
Counter pressure Filling a 2-liter.
July 8, 2020
1 year ago
Response from MoreFlavor
Thank you so much for your review and pictures! That is a great and creative use for this piece, and we love the idea! Cheers!
July 9, 2020
Malcolm lieban