I replaced the faucet body with a different specification, and now I have extra cartridges from the subscription service. 《3/3》 - Part Number: JC0032ST - Product Name: Standard Type - Filtration Flow Rate: 4.0L/min - Manufacturer: Takagi Co., Ltd. - Set Quantity: Set of 2 - Country of Manufacture: Japan It seems they were added and used later, so the old ones have uneven bags. Of course, they are unopened. Please purchase only if you understand. Thank you for looking.