E-Z Ink (TM) Compatible Toner Cartridge Replacement For Brother TN331BK Black (2 Pack) Brand: E-Z ink Page Yield: 2,500 per toner cartridge. All toner cartridges are manufactured in an ISO 9001 certified facility. All toner cartridges are engineered to produce superb results. All products covered by a 100% satisfaction guarantee and 1 year warranty Compatible With MFC-L8600CDW, MFC-L8850CDW, HL-L8250CDN, HL-L8350CDW, HL-L8350CDWT Laser Printer