Stainless Carbonation & Cleaning Cap

  • Item #D71
  • Regular Price: $13.99
    On Special: $7.99
    Save: $6.00 (43%)
In stock - 1 units available.
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In stock, will ship on Wednesday, March 22

 An all stainless male ball lock valve coupling cap that fits a 2 liter or smaller plastic soda bottle with a 28mm screw cap lid. This allows the 2 liter bottle to be charged with C02 from any female ball lock gas fitting (like our item D32 or D03 Gas Connector), carbonating the cold beverage in the bottle. Great for serving draft beer away from the keg. Also fits the Brewzilla in and out ports on the lid, and the Brewzilla Collection Jar ports for pressurizing the Brewzilla fermenter.

You can also fill this with sanitizing or line cleaning solution, put some ¼" tubing on the barb, and use it with a 2 liter PET bottle as a line cleaner for kegs and draft systems. To do this, fill the PET bottle 1/3 full of cleaning solution, screw on the cap with tubing affixed, and inject with C02 to pressurize. Then use a beer ball lock fitting with a ¼" hose attached and use this to rinse your beer faucet nozzle first, or use a piece of hose with two beer ball lock barbed fittings, and make a jumper to clean the beer side of kegs.

This has a integral hybrid ball lock post that will accept beer and gas lines. A tradeoff of this design means when you use a grey ball lock gas fitting to charge your bottle, the grey fitting will leak if you leave it on.  This is designed to quickly charge with gas and then remove the gas ball lock fitting, it is not designed to have a gas line attached for any length of time. This works for its intended use, which is a quick charge with gas and then having the ability to attach a beer dispensing line with a black beer ball lock fitting. You can affix 1/4" interior diameter beer tubing to the interior gas post which will serve as a beer pick up dip tube during dispensing if desired (order a foot or so of our item S31, 1/4" beer tubing if you want to do this).

You can also purchase our P53 Gas Post for Corny Keg if you want a gas post on this fitting that will not leak gas when attached for a longer period, although this eliminates the ability to also attach a black beer side ball lock fitting.







This shows the fitting disassembled. All parts are standard Cornelius type, and the sealing silicone O ring is our item R42.
Average rating 8.66666666666666 out of 10 ( based on 6 reviews )

carb cap

Review by earl on 2/11/2019

this one works really well. I only wish the first one worked. I would have sent it back but let it slip by over o year

So Useful

Review by Johnny M on 11/7/2018

This cap fits 1 and 2 liter bottles. I keg my brew so when I take some to go it is usually in a growler. If I am going somewhere space or weight might be an issue, the 1 and 2 liter soda bottles are the ticket. So, I fill off the tap and cap with this cap and put it on the gas for a day to regain any carbonation lost during the pour. Tasty carbonated beer every time!

More than one use for this product

Review by phb2234 on 7/30/2017

While it may be occasionally handy to be able to carbonate beer in a PET soda bottle, the main reason that I bought this product was to make a device that would allow me to recirculate cleaner through my beer dispensing lines. This fits the bill perfectly. The product is well made and should last forever. I can use it with my keg washer set up and clean my beer lines in minutes.

Works for cleaning lines and as mini-keg

Review by Steve R on 1/29/2017

An update: Since the previous review I wrote, I learned that this cap does not *always* leak when dispensing beer. So when it does leak, perhaps try disconnecting and reconnecting, etc., until it stops.

design flaw

Review by Tom on 12/3/2015

I really want to like this carbonation cap but it has a major flaw. It's all stainless steel and the ball lock can be disassembled for cleaning. Sounds good until you try to take it apart and find that it is almost impossible to get 2 wrenches or pliers to grip. TIP: What finally worked was a channel lock plier to grip the cap portion with just enough space to fit an open end wrench at an angle to tighten/loosen a 1/8th turn. If you don't have the just the right tools, you will be frustrated.

Dec 05, 2021 by Emad

Q: Can I use it on a glass bottle, such as a champagne bottle "as it can handle a pressure of 5 bar more"

A: Not recommended, as if it explodes, it can cause personal injury.

Jan 02, 2021 by Daniel

Q: The description mentions being able to swap the liquid post with a gas post (P53), but the images don’t seem to show that the part can be disassembled to that degree (all I see is that the barb can be unscrewed). Can you confirm if the post can be swapped?

A: The post cannot be removed. The good news is the post is compatible with both gas and beer ball lock fittings.

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