Canon PG-240 Black Ink Cartridge, Compatible to MG3620,MG3520,MG4220,MG3220 and MG2220 - Walmart.com
Canon PIXMA MG3220 Ink
Canon Pixma MG3200 Ink Cartridges [Free 2-Day Shipping on Orders over $50] | ComboInk
Amazon.com: Canon Pixma MG3620 Wireless All-in-One Color Inkjet Printer with Mobile and Tablet Printing, Black & Canon CL-241 Color Ink & Canon PG-240 Black : Office Products