TOCLAS water purifier cartridge JCSP1, 3 cartridges per pack, with a replacement目安 of approximately 4 months. I purchased this, but the specifications were different, so I've been storing it at home. I opened it to check, but it's unused and brand new. For those who understand. - Brand: TOCLAS - Model Name: JCSP1 - Contents: 3 cartridges - Replacement目安: Approximately 4 months - Filter Type: Water purifier cartridge Thank you for looking.