... 3.High quality components 4.Easy installation Maintenanc Reverse osmosis technologyWith the report of raw water analysis and the different requirements ... .7% inorganic salt, heavy metal ion and completely get rid of colloid, microbiology organic materials, germ, protozoa, pathogens, bacteria, ... . 2) No need to add any chemicals, stable pure water quality, and no pollution drained, low produce cost. 3) ...