Zeolite filter is a group of natural or synthetic hydrated aluminosilicate minerals which contain alkali and alkaline metals. It is characterized by a framework structure that encloses interconnected cavities occupied by ion-exchangeable large metal cations and water molecules permitting reversible dehydration. Zeolit is recommended in detergent manufacturing for the applications of the removal of hardness and heavy metal ions and neutralisation of acid waters. The natural clinoptilolite’s characteristics and index: specific weight g/cm3 2.0 ~ 2.6 mud % ≤1.0 Volume weight g/cm3 1.6 water % ≤1.5 wear rate % ≤1.0 Na ion exchange capacity g/cm3 ≥800 Activate zeolite filter 　Characteristics： Indensity g/cm3 1.8 ~ 2.2 Filter race m/h 4 ~ 12 Volume weight g/cm3 1.4 Wear % ＜0.5 Holes % ≥50 Broken race % ＜1.0 Specific surface area m2/g 500 ~ 800 Mud content % ＜1.0 Dissolve race of HCl% ≤0.1 Total exchange volume mg/g 2.2 ~ 2.5