... plastic tank (RO,ro purifier without pump,reverse osmosis) Features:Stage 1: 5micron PPF Cartridge which filter sand, mud, rust, sediment, ... 2: Granular Activated Carbon Cartridge which removes bad smell and filter organic sediment, chlorine etc in water.Stage 3: Block ... Carbon Cartridge which complete removes bad smell in water and filter organic chemical pollution.Stage 4: RO membrane which remove ...