SAND FILTER   : Remove Mud, Sediment and Particles
CARBON FILTER : Remove Chlorine, Chloramines, Benzene, Pesticide,
                Organic Matter, Colour, Taste & Odour
IRON FILTER   : Remove Particles, Iron and Manganese ions

SOFTENER          : Remove Hardness
                    (Calcium and Magnesium ions)
DEMINERALIZER     : Remove Cation and Anion ions
REVERSE OSMOSIS	  : Remove all impurities such as Heat Atom,
                    Virus, Heavy Metal Compound and Ions
ULTRA VIOLET      : Remove Bacteria and other micro organism
                    until 99.99% in effective elimination rate