The KX Matrikx +Pb1 06-425-200-20 Filter removes and/or reduces lead, cysts, chlorine, taste and odors, and sediment from your water. Powered by Greenblock® technology, all KX +Pb1 filters are made from 100 percent coconut shell carbon, a renewable and ecologically sustainable material that reduces soluble lead. The KX +Pb1 also contains a greater number of micro-pores and a carbon surface, which provides better absorption and kinetic dynamics. The KX Matrikx 06-250-125-20 also meets NSF/ANSI Standard 53, Turbidity and Cyst Reduction, including Cryptosporidium, Giardia, Entamoeba and Toxoplasma although it has been tested and verified by an independent laboratory. The +Pb1 Specifications: Dimensions: 20″ x 4.25″ 0.5 Micron Nominal Filtration 1 Micron Absolute Filtration No Release of Carbon Fines NSF 42 Test & Certified for Material Requirements High Absorbtion and Capacity Flow Rate: 5 GPM @ 6.5 psi drop Max Operating Pressure: 250 psi Max Operating Temp: 125 F High Adsorptive Capacity and Efficiency NSF and WQA certification for Material Safety California Prop. 65 compliance Exceptionally low pressure drop High Dirt Holding Capacity