ProPrint Compatible Toner Cartridge Replacement for HP 131X ( Black , 1-Pack ) LIFE TIME WARRANTY - 100% Quality Guarantee for the life of the cartridge. Best Warranty in the Industry ProPrint Compatible HP 131X Black Toner Cartridges are High Quality OEM Replacement Cartridges That Provide Up to 60% Savings Compared to the OEM Page Yield: 2,400 Pages Black based on 5% Coverage (letter/A4) All ProPrint Cartridges are Manufacture According to ISO 9001 and ISO 14001 Standards to ensure Quality and Performance Compatible with HP Color LaserJet Pro 200 M251n, M251nw, M276n MFP, M276nw MFP