... 1.reverse osmosis device 2.stainless steel frame 3.manual or automatica system Reverse osmosis use ... inorganic ion, bacteria, virus, and colloid etc in original water so that obtain high quality pure water ... , and no pollution drained, low produce cost. 3) Equipped with pretreatment system, such as active carbon ... simple, the applicability is strong All-In-One Reverse Osmosis Pure Water Making Machine