Made of food-grade stainless steel, this 0.5-micron aeration stone is corrosion-resistant and heat-resistant, ensuring durability and long-lasting performance. The 0.5-micron pore size produces fine, consistent bubbles for even diffusion, improving oxygenation and enhancing the fermentation process. Designed for reliable use, it offers strong corrosion resistance and prevents clogging. To use, turn on the gas supply before inserting the aeration stone into the liquid. Connect the barb fitting to a 1/4 inch inner diameter hose, and attach the other end to the gas inlet post or CO2 regulator. Operate at low pressure (35 PSI) for optimal results. Ideal for home brewing applications, this aeration stone delivers smaller bubbles compared to larger pore sizes, promoting better gas dissolution in wort, beer, soda, cold brew coffee, and other beverages. Suitable for oxygenating wort prior to fermentation or for force carbonating beer, soda, juice, or coffee in a keg system.