Water purifier cartridge TH658-1S, set of 3 x 2 I am selling these as I don't use them. [Water Purifier Cartridge Material] The filtration materials used are activated carbon, non-woven fabric, and hollow fiber membrane (raw material: calcium aluminate), which can adsorb impurities in tap water. It reduces the environmental burden when disposed of. Water flow rate per filter core: 1200 L, maximum removal rate: 95%, capable of removing 5 types of substances. Compatibility: TH658R, TH658, TH658-1R, TH658-1 Model Numbers: th658s-1s, th658s h020006c