Reverse osmosis water treatment system use enough pressure to separate solvent ( usually it is water ) of liquor through film of reverse osmosis ( or semi-permeable membrane ), so it is called reverse osmosis. reverse osmosis as high efficiency technology of desalting can remove impurity such as inorganic ion, bacteria, virus, organic substance and colloid, e.t.c in original water so that it can obtain high quality pure water. reverse osmosis method that is bigger than pressure of penetration can be used to separate, extract, purify and concentrate according to different penetration pressure if different material. all our equipment come with warranty. we carry out installation and training on all our equipment.