CellarBrew 2pcs Air Diffusion Stone, 0.5 Micron Carbonation Carbonater Stone, Stainless Steel Aeration Stone，Home Brew Beer Oxygenation Stone with 1/4" Hose Barb

【Healthy Food Grade Material】:Food Grade 0.5 Micron Diffusion Stone with 304 Stainless Steel 1/4" Barb, High Qulity and Anti-Corrosion. 【Unique Mouth - feel】: Compared with 2 micron, 0.5 micron diffusion stone will produce smaller & finer bubbles which can make the O2 or CO2 combine with liquid faster. Let your draft beer, soda, coffee and other drinks more delicate, more exquisite and more fresh. 【Various Use】: Best Choice for Oxygenation and Carbonation, for Beer, Soda, or Coffee. 【Boiled Clean】:The 0.5 micron diffusion stone needs to be boiled in water to clean & unclog the pores. If the pores in aeration stone get blocked, it should be dipped in acid for 15 seconds and then rinsing with water. 【Quality Guarantee】: Any Defective for Diffusion Stone, Backed by 45 days Money-Back., Manufacturer: Teamsale