Feature: 1. With millions of pores, so this diffusion stone will quickly oxygenate wort and carbonated beer/soda water before fermentation.2. The 1/4 inch barb can be easily connected or disconnected, which is convenient and practical, reliable for brewing accessories. 3. Made of 304 stainless steel, which makes the in‑line aeration stone corrosion resistant, high temperature resistant and durable. 4. In order to clean your diffusion stone, we recommend that you simply boil the oxygen diffusion stone in water for 1‑3 minutes. 5. Avoid clogging the s of the oxygen stone, do not contact the body of the diffusion stone with your hands. The grease on the fingers will block the small pores on the stone. Specification: Condition: 100% Brand New Package List: 2 x Diffusion Stone |