The original Canon PGI-520BK black cartridges are popular cartridges in a wide range of Canon 4 and 5 cartridge printers, including the Pixma MP550.The Canon PGI-520BK black cartridge contains 19ml of ink and is therefore perfect for both home and office use. Designed to print around 324 pages at the industry standard 5% page yield, the PGI520BK cartridge represents a large cartridge and good value and like all Canon printers, the PGI520BK cartridge will produce excellent quality results when printing. The PGI-520BK cartridge is therefore exceptional value for money for any of the many Canon printers it is compatible with, all listed above.Our Original Canon PGI-520BK black cartridges for this range of Canon printers is amongst the lowest priced on the Internet. All our prices include VAT and delivery so the price you see is the price you pay.