Brother DR331CL Replacement Drum Unit Set for HL-L8250, HL-L8350, MFC-L8600, MFC-L8850 Printers Genuine Brother replacement drum unit set Works with Brother HL-L8250CDN, HL-L8350, MFC-L8600CDW, MFC-L8850CDW printers Recommended for replacement every 25K pages Genuine Brother supplies are designed to achieve optimum performance and superior output