1 Pack Replacement 310-8702 ( 310-8700 ) Toner Cartridge Compatible for Dell 1720 1720n 1720dn Printer Replacement Toner Cartridge Not- OEM Product's , Compatibility For DELL 1720 1720N 1720DN Printer Printer Page Yield at 5% Coverage: Black is 6,000 pages per cartridge. To Replace Toner Cartridges with part numbers : 310-8700 310-8706 310-8707 310-8708 310-8709 310-8702 All our items are certified with ISO 9001 and ISO 14001, generic. All products covered by a 100% satisfaction guarantee and 90 day warranty 100% money back guarantee with ReInkCo .