Used Japanese Takagi water purifier cartridge, model JC0036ST. Please note the replacement timing. - Brand: Takagi - Product Name: Water Purifier Cartridge - Model Number: JC0036ST - Country of Manufacture: Japan - Notes: Please pay attention to the replacement timing. Used for approximately 4 months, only when drinking. Please understand that this is a used item. Thank you for viewing. Shipping will be as compact as possible, and I will pack it using simple eco-friendly recycled packaging with materials I have at home. I will offer a discount for items of the same size that can be shipped together, so please feel free to comment. I would appreciate it if you could comment before purchasing.