The First Stage (The Cotton Filter): It Consists Of A Cotton Cartridge Made Of Polypropylene That Purifies To 5 Microns And Works To Remove Solid Impurities Such As Sand, Mud And Algae. The Second Stage (Solid Carbon Filter): Made Of Solid Carbon, Its Function Is To Remove Dissolved Gases And Treat Water From Unwanted Substances Such As Chlorine, Taste, Odor And Color, In Addition To The Smallest Impurities Up To 1 Micron. The Third Stage (Salt Filter): It Is A Unit Known As The Membrane. It Contains Very Fine And Narrow Pores Of Up To 0.00001 Microns, And It Depends On The Osmosis Feature And Removes Salts, Bacteria And Heavy Metals, Starting From 96% As An Expulsion Rate Called Mechanical Expulsion That Does Not Use Any Chemicals. The Fourth Stage (Tds Controller): Through It, The Percentage Of Salts Permeable From The Source Can Be Controlled. The Fifth Stage (Uf Membrane Filtration): Works To Prevent Bacteria And Heavy Metals From Entering If The Salt Trap Is Opened. Its Pore Size Is 0.025 Microns, And It Allows The Passage Of Minerals And Salts That Are Beneficial To The Body. ((It Is Excellent For People Who Want To Retain Minerals Such As Calcium, Magnesium And Salts In Their Water)). The Sixth Stage (Ultraviolet Rays): An Electric Filter That Focuses Ultraviolet Rays On The Water To Kill Viruses. The Seventh Stage (Post Carbon Filter): A Carbon Filter Made From Coconut Shells That Removes Any Taste Or Smell Before Entering The Water Into The Tank. Uses It Is Used To Purify Salty Water. The Purification Capacity Is Up To 20 Liters Per Hour. The Body Materials Are Plastic