Stainless Steel Carbonator Cap via Brew Hardware – $9.99!


Stainless Steel Carbonator Cap via Brew Hardware

From the product description, check product page for current description, price and availability:

This high quality carbonator cap fitting threads on to PET soda bottles up to the 2 liter sizes and is compatible with ball lock keg “grey” quick disconnects. If you want to use a soda bottle as a growler to transport some of your kegged beer, squeeze out the air in the headspace and replace it with CO2 with some additional pressure to preserve perfect carbonation even if the bottle is only half full. It’s also a great way to quickly carbonate some beer that has been bulk aging to see how it’s coming along. While a soda bottle doesn’t match fashion with the fancier growlers at the party, at least your beer will be fully carbed.

We bet you can’t even find a molded plastic version of this fitting for cheaper!


  • PET Bottles as Growlers: These are generally intended to convert 1L and 2L bottles to growlers.  Fill up a 1L or 2L PET bottle with your favorite homebrew.  Put one of these on (purge the headspace by squeezing if you want to) and then pressurize for transport.  This should help to reduce oxygen pickup and maintain carbonation levels.
  • Fine tune or rapidly carbonate beer: You can also use this cap to rapidly carbonate beer.  Same process as for transport, just set your regulator to the proper pressure and shake or agitate the PET bottle to help introduce CO2.  Or hook it up to CO2 and let it sit in you kegerator.

As of this posting, Brew Hardware has this on sale for just $9.99. Price, promotions and availability can change quickly.  Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit the product page.  Check the product page for current price, description and availability


Update: This promo has expired or pricing, availability or description has changed – Check the supplier’s site or product page for current availability

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Also Consider: Ferroday Stainless Carbonation Cap Counter Pressure Bottle Filling With 5/16″ Barb,CO2 Coupling To Carbonate Soda Beer Fruit Juice Water via Amazon | Hands on Review

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