Mitsubishi Cleansui Cartridge Product Model Number: MDC01SZ I purchased a set of 3, but I'm selling one unused cartridge because I changed my faucet and the model no longer fits. The box has been opened, but the individual cartridges are still sealed in their original packaging. *The cartridge will be shipped without the box. (If the packaging size allows, the box will be folded and included.) ● "Mitsubishi Rayon Cleansui Cleansui Mono Series Replacement Cartridge High Grade, Set of 3 (MDC01SZ)" is a replacement cartridge compatible with the Cleansui MONO series.