Thank you for viewing! It's convenient, isn't it! Torayvino! I purchased a 2-pack around January 2025, and used one. However, I bought a water server, so I no longer plan to use the Torayvino itself (╹ω╹ ) I am selling one unopened cartridge from the 2-pack box. Thank you. #TorayvinoCartridge #WaterPurifierCartridge