Carb Stone

  • Carb Stone
  • Carb Stone
  • Carb Stone
  • Carb Stone
  • Carb Stone


The carb stone is another dual purpose device! It can be used to oxygenate your wort when hooked up to an oxygen source with both the FLEX and FLEX+. It can also be used to add pressure for transfers, purging oxygen, carbonating, etc when used with the FLEX+ which is rated for 15psi. If reducing your carbonating time from upwards of a week down to less than 24hrs is appealing then the FLEX+ and a carb stone bundle might be your best friend! It also has a protective stainless housing which prevents damaging the very brittle 'stone'.

The carb stone attaches to a 1.5" TC. It will attach directly to the FLEX+ butterfly valve. The FLEX will need an upgraded 1.5" butterfly valve, a 1/2" NPT to TC adapter or can be attached to the secondary port. 


Detailed product guide:
Product Guide.pdf

Forced carbonation pressure chart:
Carbonation Chart


Carb Stone Only 
-Carb Stone 
-1.5" TC Clamp 
-1.5" TC Gasket 
-Gas Post 

Carb Stone Bundle
-Carb Stone Package (see above)
-Pressure Gauge (Link)
-PRV (Link
-2nd Gas Post (Link)
-Gas Manifold (Link) 

**This accessory is to only be used with the FLEX+ or the upgraded high pressure lid**

**Always use a 15psi pressure relief valve when pressurizing a tank**