Genuine Brother DR331CL (DR-331CL) Imaging Drum Unit for MFC-L8600CDW, MFC-L8850CDW 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