TOTO Water Purifier Cartridge TH658S VPA Set of 4 These are genuine TOTO products that I regularly purchase. The list price is 4,000 yen per cartridge. They are new and unused, but have been stored at home for several months. - Brand: TOTO - Model: TH658S VPA - Application: Water purifier cartridge - Quantity: 1 piece per set - Specifications: ABS resin - Conformance Standards: JIS S 3201 - Replacement目安: Approximately 2-4 months - Flow Rate: 1200L (80% flow rate)