... in world wide RO water filter 1,coconut active carbonAdopting high quality filar active carbon which is imported from japan and has ... put our nitrite during the process of removing chlorin.2, multilayer empty-middle filar velumFilar velum is made in japan, ... of 0.1micron particulate,the particulate laps over and form multilayer structure to remove bacteria,coliform,hold back protoplast feculent things ...