Stainless Steel 316 Diffusion Stone Air Stone 2 Micron ...
Homebrew Diffusion Stone 316 Stainless 1/2" diameter. Stone is 1" in length. Overall length is 1 7/8" The 2 micron stone is ideal to force carbonate your kegged beer, or as an aeration stone prior to fermentation. The barb is 1/4" ID.