E-Z Ink (TM) Remanufactured Ink Cartridge Replacement For Lexmark 43XL & 44XL (1 Color, 1 Black) 2 Pack 18Y0143 18Y0144 Brand: E-Z ink Page Yield: Black is 550 pager per cartridge. Color is 500 pages per cartridge. All cartridges remanufactured using ISO 9001 Certified Process. Cartridges have undergone an extensive process which includes: cleaning of all dry/excess ink, re-filling cartridge to OEM capacity, and testing to ensure quality and compatibility All products covered by a 100% satisfaction guarantee and 1 year warranty Compatible With X9570, X9350, X7550, X9575, X4875, X7675, Z1520, X6570, X6575, X4975, X9675, X4950, X4850 Printer