Canon Knowledge Base - Replace or Reseat Ink Tanks - PIXMA MG5420, MG5422
5 Pack New Compatible Ink Cartridge For Canon 250 251 PGI250XL Black CLI251XL Black Cyan Magenta Yellow For use with Canon Pixma MG5450 5520 5620 5322 6320 iX6820 6850 iP7220 7250 MX722 725 More - Walmart.com
Canon PIXMA MG5450 Ink
CANON PIXMA MG5450 CLI251XL HI GRAY INK (6452B001) -
Lot Ink Cartridge 550/551 for Canon Pixma MG5450 MG5650 MG6350 MG715 MX725 NoOEM | eBay