http://www.bulkreefsupply.com/store/products/reverse-osmosis-filters-and-systems/replacement-filters-and-di-resin --- MATRIKX + CTO®/2 filters are the most widely used carbon block devices in the world and provide previously unattainable performance at the lowest price point. MATRIKX + CTO®/2 filters simultaneously remove chlorine taste and odor and organic chemicals that contribute to taste and odor while providing the particulate filtration and dirt-holding capacity of an efficient 5 μm nominal sediment filter. These filters are optimized for applications where they perform the role of both a sediment and activated carbon filter. KX®s proprietary extrusion process allows the production of a carbon block with more carbon, but a lower pressure drop. This enables a MATRIKX + CTO®/2 filter to deliver extended life while removing sediment, chlorine taste and odor and organic contaminants from water, aqueous solutions or suspensions. The MATRIKX + CTO®/2 is also widely used in filtering organic solvents. The MATRIKX + CTO®/2 is ideal for use in residential and commercial water purification systems, food service, pre- and post-RO systems. The MATRIKX + CTO®/2 is manufactured from high purity acid-washed activated carbon. Its dirt-holding capacity and the absence of carbon fines makes the MATRIKX + CTO®/2 the filter of choice. A superior carbon block, MATRIKX + CTO®/2 combines both high performance and integrity with an exceptional cost-to-performance value. As a result, MATRIKX + CTO®/2 virtually renders GAC filters obsolete by comparison.