I replaced the faucet body with a different specification, and now I have extra cartridges from the subscription service. 《1/3》 - 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 removed later, so the old ones have some discoloration on the bags. Of course, they are unopened. Please purchase only if you understand this. Thank you for looking.