Chloramine & VOC Reduction Carbon Block cartridges use a proprietary blend of high-purity acid-washed and catalytic carbons. This proprietary blend is formed into a 1μ nominal block structure which is tighter than that of standard CTO filters. This design makes them an ideal choice for taste and odor correction, chloramine and chlorine reduction, as well as the removal of volatile organic compounds. Each block is wrapped with a polypropylene outer layer and netting to prevent premature clogging, ensuring efficient and langlebige Filterung.