New, Unused [JIS Standard Japan Tested] [JF-K21] Replacement Water Purifier Cartridge [Removes 12+1 Substances] [Set of 3] [High Chlorine Removal] Compatible with All-in-One Water Purifier Faucet Water Purifier Cartridge High Chlorine Removal Water Purifier Standard Type Material: ABS resin ● Filter Media Type: (Raw Materials: Calcium aluminosilicate and diatomaceous earth, two-layer structure) Activated carbon (activated carbon fiber), non-woven fabric.