HP 81 Dye Ink Cartridges are designed to work with HP 81 Dye Printheads as part of a complete modular ink system. Six specially formulated, dye-based ink colors deliver the smoothest color transitions and wide color gamuts. These high-capacity 680ml ink cartridges are ideal for overnight or unattended production printing. Built-in smart chips constantly monitor ink cartridge levels and alert you when it's time to replace.

·                     Made By: HEWLETT PACKARD

·                     Model Number: C4931A

·                     See Description