Diffusion Stone - 2 Micron W/Barb Use this 2 micron oxygen stone with an oxygen source or aeration pump to provide your yeast with oxygen pre-fermentation. The barb is 1/4" OD. (Note: if you are using an aeration pump, we recommend a... MSRP: Was: Now: $12.99 Add to Cart
Diffusion Stone - 2 Micron W/Flare Threads We added threads instead of a barb and now you can use the fittings you see at the bottom of this page to connect and disconnect your tubing. This allows you to place the carb stone by itself... MSRP: Was: Now: $12.99 Add to Cart
