Designed for several large format Hewlett Packard printers, like the DesignJet T250, each cartridge in the 712 range offers incredible results. The magenta cartridge from this range, the 3ED68A, contains 29ml of some of the best quality ink HP have ever produced.You can rely upon the genuine Hewlett Packard 712 magenta ink cartridge to print in a quality that alternative cartridges cannot. The pigment-based magenta ink within this 3ED68A unit is ideal for larger artwork or signs that will be exposed to UV light and last for an extended period.