AQUAPHOR Crystal Replacement Filter Cartridge Set: K3, K2, K7 - For Carbon Crystal Filter Systems\nKeep your AQUAPHOR Crystal water filtration system performing at its best with this complete Replacement Filter Cartridge Set: K3, K2, K7\n\nThis genuine AQUAPHOR set provides thorough three-stage purification using advanced CarbFiber block technology and patented AQUALEN\u2122 ion-exchange fibre. It reliably removes chlorine, lead, heavy metals, bacteria, pesticides, phenols, drug residues and other harmful substances, delivering crystal-clear, great-tasting water straight from your tap.Key Features:\n--K3 \u2013 Primary mechanical and sorption purification (5 \u00B5m)\n--K2 \u2013 Deep sorption purification (3 \u00B5m) \u2013 removes chlorine, organic compounds, heavy metals\n--K7 \u2013 Final polishing stage \u2013 active chlorine and fine impurities removal for perfect taste\n--AQUALEN\u2122 fibre prevents bacterial growth and increases filtration efficiency\n--C!