CIS Refill Kit with 8 Colors UV(Ultra Violet) resistant Ink for Epson R1900 Continuous Ink System (Related Cartridge #: T087020, T087120, T087220, T087320, T087420, T087720, T087820, T087920) This is a Uni-Kit refill for the Epson R1900 Continuous Ink System. This refill kit comes with 120ml of each color This refill kit is equivalent to 8 ~ 9 cartridges PER COLOR! Thats a total of about 40 ~ 45 cartridge yields all in this 1 refill kit! Color: Optimizer, Photo Black, Cyan, Yellow, Magenta, Red, Matte Black, Blue The ink in this refill kit is UV(Ultra Violet) resistant Dye based and matches the OEM quality in both quality and page yield.