1st: PP- PP fiber filtration wipes off impurities, algae, silt, sediment 2-3 months

2nd: GAC- GAC filtration wipes off residual chlorine,  unpleasant smell, pesticides, chemical poisons 3-6 months

3rd: CTO- Block carbon remove the odor, chlorine and other materials which are harmful to health.To improve the taste, Will use the micro pore of the active carbon filter. 3-6 month

4th: RO- RO membrane,remove the micro impurities,colloid,metal, bacteria’s and so on,only left the water molecule and dissolved oxygen,output water is purity water 12-24 months

5th: Post active carbon-,improve the PH, avoid the second contamination Mineral ball filter, add mineral material in the pure water, more healthy. 10-12 months

6th: Mineral Tube- Add mineral materials into purified water 12-24 months

7th: Ultra Violet-  UV Kill bacteria, avoid secondary pollution 24-36 months