Recycled using a mix of original HP C9451A light grey pieces and fully-compatible parts, each of these remanufactured units both save you a few quid and are not hampered by the cartridge having been used previously. With a large portion of the  remanufactured Hewlett Packard 70 light grey being brand-new, we would genuinely recommend this ink cartridge for most users.Our alternative to the genuine HP C9451A has a 130ml capacity of light grey ink, just like the original, but is filled with a high quality compatible dye based version instead. Despite the difference in manufacturer, these remanufactured HP 70 light grey ink cartridges still produce great looking prints.