This is a high quality remanufactured inkjet cartridge which replaces the HP CH636AN inkjet cartridge at a significant price difference to the OEM (genuine original HP cartridge). We offer a variety of remanufactured inkjet cartridge models at significantly discounted prices without compromising quality and page yield (which are comparative to the genuine HP CH636AN ink cartridge). Our remanufactured for HP CH636AN inkjet cartridge is filled with premium ink manufactured by a U.S. specialized inkjet manufacturer, where it is professionally engineered in ISO9002 manufacturing facilities that utilize state of the art processes to ensure that the quality and longevity of the cartridge will perform to the highest quality standards possible. Buying our remanufactured cartridges is a smart idea for any business or home user who is concerned with high-quality and long-lasting printouts at a significant savings compared to buying Original HP ink. Compatibility includes CH636AN, HP 920