E-NETWAY : http://www.e-netway.com/ Email: info@e-netway.com Do you believe that one filter can solve all drinking problems? City and rural area, buildings and detached houses water quality conditions are different in different regions, If possible, there should be customized options, using the filter that is most suitable for the home. Just like computer can be DIY, the water purifier should also use the same concept to define its own filter specifications, and combine the most suitable filter module to get the most effective and reliable water purification effect. Some areas are soft water, but some areas are hard water. Some rural areas and mountain areas may use groundwater and spring water, you should be noted that heavy metal contamination and parasite eggs. If you live in a building, the water tower maybe cleaned regularly. you should note remaining chlorine of tap water disinfection. However, the use of water is slow in water towers of single family homes, and chlorine gas may have disappeared long ago. It is the moss spores that should be paid attention to. So you should choose a water purifier with multiple filters instead of a large brand of composite filters. Sourcing more Taiwan Products: https://www.taiwantrade.com