This is a set of 3 Mitsubishi Chemical Cleansui CPC5 cartridges. I had them in stock, but no longer need them, so I'm selling them new, unopened, and unused. There is no box. Please refrain from purchasing if you are sensitive to items stored by individuals. 3 CPC5 germ-removal filters, 3-month usage, high grade. Mitsubishi Rayon Cleansui Replacement Cartridge for Cleansui Pot-Type Water Purifier Super High Grade - Quantity: Set of 3 - Model Name: CPC5 - Filter Type: Germ-removal filter - Usage Period: 3 months - Grade: HIGH GRADE Thank you for viewing.