The water sterilizers provided by amrita aqua equipments. These are developed with know how from duker uv water sterilization, germany. They have the ability to destroy micro organisms; the best results being completed with the 254-nm wavelength. This natural techniques has been me for exploits ultraviolet radiation to disinfect water. The sterilization of water by ultraviolet radiation is a safe option to other disinfection techniques. Water sterilization by uv allows decisive processing advantages: immediate and reliable destruction of micro organisms without adding chemicals; neither the taste nor the smells of natural water are altered by sterilization; no forming of toxic compounds; no danger of overdosing or corosion; no danger of reactions in the production of beverages, essences, drugs, cosmetics, etc; no filter plant or special storage rooms needed for chemicals; and low investment and running costs with high security and efficiency.