Brand new high capacity cartridge. Factory-sealed! Compatible with the Brother LC31BK (LC-31, LC-31B, LC-31BK). 25ml Capacity. 800 pages at 5% coverage. It is manufactured under ISO 9001 to meet or exceed the original specifications and performance standards. Ink Made in USA. 100% Satisfaction Guaranteed! 1 Year Quality Assurance Guarantee! Will ship within 24 hours. Work With: Brother MFC-3220C, MFC-3320C, MFC-3320CN, MFC-3420, MFC-3820, MFC-3820CN, FAX-1820C, FAX-1920C.