Sanitary diffuser aeration systems provide increased oxygen content to high purity water systems. Diffusers can also be used to diffuse digester gases such as hydrogen sulfide and sulphur dioxide; to introduce ozone for oxidizing and destroying bacterial and organic chemical contaminants; and for carbon dioxide injection for recarbonization and ph adjustment. Manufactured from 316L Stainless Steel Porous Disc and molded with EPDM, FKM Fluoroelastomer or Silicone.