* Remanufactured HP 45, Fast Dry, Spot Color, Red, Fluorescent Ink Cartridge * Performs well as a Neopost ink when used in Neopost mail addressing systems because this cartridge is filled with compatible USPS approved fluorescent red ink * A dryer is recommended for mail equipment usage to 600 dpi * As with any fast drying ink, to insure optimum performance, please reclip your printheads when they are not in use and use a lint-free cloth and alcohol to clean your cartridge printheads. Use of paper towels, or a cotton cloth, is strictly prohibited as lint will clog printheads and all warranties will become void * At the present time, these cartridges do not come with a chip as is required for use in some machines, but it is something under investigation with our mill * Compatible HP c6120a UV ink within a HP c6168a cartridge * One year warranty * Made in america * Free US Priority Mail or UPS Ground from CA * US SALES ONLY - IN STOCK