LD Toner to replace Dell 310-8702 (GR332) Black Toner Cartridge for your Dell 1720 Laser printer For use in Dell Laser 1720 & 1720dn Page Yield: 6,000 | Shelf Life: 24-36 Months 100% satisfaction and lifetime guarantee on all LD-branded cartridges and printing supplies Replaces OEM and Dell manufacturer part numbers: GR332, 310-8707, 310-8709, 310-8706, MW559, RP441, 310-8708 and PY449 Contains a toner management computer chip system that allows the cartridge to communicate more effectively with your computer