KDF Center Water Filter,is a compositive water purifying device to reduce free clorine,heavy metals,bacteria,prevent scale,and reduce bad color, smell and so on.It filled with KaiDeFei Media,GAC,zeolite,depend the technology of filter,adsorption,electric-chemistry reaction.The out water not only reduce the harmful matter,but also remain the beneficial matter,became first choice of customers. We also have many types of this kind of system