ALL COLORS Remanufactured Ink Cartridge Replacement for HP HP OFFICEJET PRO K550 YELLOW INK CARTRIDGE ( Black,Cyan,Magenta,Yellow , 12-Pack ) Sophia Global Cartridges are manufactured in an internationally certified ISO 9002 factory. Sophia Global Cartridges come with a 100%, 1 Year money back guarantee and technical support, in addition to a 1 year factory warranty. Manufactured to produce excellent color matching for vibrant photos, crisp text, and a shelf life of 2 years. Page Yield 2450 Black 1540 Color Accurately displays ink level.