Thank you for viewing. This is a replacement cartridge for the eSpring II water purifier. It can be used as a filter replacement for household water purifiers. With high-performance activated carbon and UV light, it removes residual chlorine and impurities, making your daily drinking water safer. 【Product Condition】 New, unused 【About Stock】 This is part of the stock purchased in bulk. I am selling it because I no longer plan to use it. It has been stored indoors in a dark place. 【About Shipping】 It will be carefully packaged and shipped via anonymous delivery (Yu-Packet or Nekopos). Immediate purchase is welcome. I try to ship as quickly as possible. 【Please confirm before purchasing】 Please confirm the compatible models before purchasing. If there are any problems after the product arrives, please contact me via the transaction message before leaving a rating. Please refrain from purchasing if you are concerned about minor details, as it is a home-stored item. I strive for smooth and pleasant transactions. Thank you for your cooperation.