LD Compatible Ink Cartridge Replacement for Canon PGI-72 6409B002 (Gray) Shelf Life: 36 months The use of compatible cartridges and supplies does not void your printers warranty This compatible cartridge is conveniently equipped with a smart chip that allows you to monitor and track your ink levels All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in the following Canon PIXMA Printer: PIXMA PRO-10