Karl Aiken Remanufactured HP 88 printhead set for HP OfficeJet Pro K550 K8600 L7680 K550 L7000 L7681 K550 L7480 L7700 L7500 L7710 K5400 L7550 L7750 K5400 L7580 L7780 K5400 L7590 K550 K5456 L7600 K8600 L7650 Note: Usually need 5- 13 days to deliver. Needn't wait for a month Replacement For HP 88 Print head Cyan/Magenta HP 88 Print head Black/Yellow All products covered by a 100% satisfaction guarantee and 90 days warranty The printers are compatible: HP Officejet Pro K550dtwn Inkjet Printer ; HP Photosmart 428 Digital Photo Inkjet Printer ; HP Officejet Pro L7780 All In One Inkjet Printer ; HP Officejet Pro K550dtn Digital Photo Laser Printer ; HP Officejet Pro L7680 All In One Inkjet Printer ; Hewlett Packard Officejet Pro L7650 All In One Inkjet Printer ; HP Officejet Pro L7680 Workgroup Inkjet Printer ; HP OfficeJet Pro L7580 All In One Inkjet Printer ; HP Officejet Pro K5300 Workgroup Laser Printer ; HP Officejet Pro K5400dn Workgroup Inkjet Printer ; HP Officejet Pro K5400dtn Label Inkjet Printer ; HP CB821A Printer ; HP OfficeJet Pro L7590 All In One Laser Printer ; HP All-in-One C8189AABA All In One Inkjet Printer ; HP OfficeJet Pro K8600 Printer ; Hewlett Packard Officejet Pro K5300 InkJet Printer.