This remanufactured HP C9451A (HP 70) light gray inkjet cartridge is an original Hewlett Packard product that has been through one cycle of service. It has been remanufactured using both OEM and non-OEM parts and refilled with a professionally manufactured pigment-based ink formula for archival print life and color stability. The cartridge features a 'smart chip' that optimizes print quality and monitors ink levels, ensuring reliable performance. We offer a 100% Quality Satisfaction Guarantee on our remanufactured C9451A ink cartridges.