Renewable Toner Compatible Toner Cartridge Replacement Brother TN331BK TN-331 for HL-L8250 L8350 MFC-L8600 L8850 (Black) LOW COST, HIGH VALUE. RT replacement for Brother TN331bk toner. Printing cost is as low as .005 cents per page, up to 60% less than Brother TN-331 original toner cartridges. QTY: 1 (1 Black) RT Compatible Brother TN331bk toner cartridge REPLACES OEM #: Brother TN-331bk Brother TN331 | Yield: 4,000 pages based on 5% coverage COMPATIBLE with Brother HL-L8250CDN HL-L8350CDW HL-L8350CDWT MFC-L8600CDW MFC-L8850CDW LIFETIME WARRANTY. We honor our warranty regardless of purchase date, even if the Amazon return window has closed