PGI 550XL Canon Compatible Black Ink for Pixma IP7250 MG5450 MG6350 MG5550 MX925 | eBay
CANON n PGI-550PGBK XL Twin pack - 2-pack - 15 ml - High Yield - black - original - blister with security - ink tank - for PIXMA iP7250, iP8750, iX6850, MG5550, MG5650, MG6450, MG6650, MG7150, MG7550, MX725 | Synigo
Amazon.com: Canon Ink Cartridge for Pgi550Pgbk/Cli551 - Multicolour (Pack of 6) : Office Products