(NSF 42 Certified) CTO Purity activated carbon block ?lters are the next generation in carbon block ?lter technology. With a greater filtering ability than extruded ?lters, our coconut carbon ?lters are blended, sinterized as well as pressed using innovative Celanese ® material. With an atomic mass from 3 thousand ~ 10 thousand u, this trademarked Ultra High Molecular Weight Polyethylene (UHMWPE) material also expecteds more carbon with each other than typical substances, optimizing carbon surface as well as chemical absorption. This method increases the parts ability, taking out more chlorine flavor, smell as well as all natural chemicals from the water than any other filter. Thanks to its 5 µm suggested ranking, this ?lter also operates as an efficiency debris ?lter. Well priced vs. extruded ?lters, CTO Purity is actually readied to transformed the carbon block ?lter market. As a result of their double function, these ?lters could be suited as either a Pre-Fliter or Post-Filter in RO devices, consisting of stand alone or pump driven.