Bulk Continuous Ink System (CIS) for: Epson R220 R230 R320 (Related Cartridge # :T048120, T048220, T048320, T048420, T048520, T048620 or T049120, T049220, T049320, T049420, T049520, T049620 No more Ink Cartridges purchase, No more Cartridges replacement. Refillable ink cartridges/ink reservoirs enable countless refills. Pre-filled with 125 ml x 2 colors and 100ml x 4 colors = 650 ml of premium UV(Ultra Violet) Resistant Dye based Ink. Quick and Easy installation. You will be printing in minutes 80% Saving on individual Inkjet Cartridge. Auto-reset chipsets automatically reset the cartridges so there is no need to utilize a chip resetter nor take the cartridges out Permanent Chip.