Cartridge compatible with HP Remanufactured Cartridge C9351AN (No. 21)

This is a compatible cartridge, not manufactured by HP. It is a compatible cartridge and works with HP printers. Compatible with HP C9351AN, #21 - Black. Fits models: Deskjet 3910, 3920, 3930, 3940. This remanufactured cart c9351an (no. 21) is a remanufactured item that always ships fast and accurately and comes with a 100% guarantee. These are not original brand cartridges, these are compatible or remanufactured cartridges made to replace the original cartridge and work with the same printer models. These cartridges are not manufactured or endorsed by HP, these are compatible or remanufactured cartridges made to replace the original HP cartridge and work with the same printer models.