Meritline offers the G&G PGI-250XL / CLI-251XL Canon-Compatible Inkjet Cartridge 6-Pack with Chip for $16.95. Coupon code "MLCB13SN" cuts it to $12.95. With free shipping, that's the lowest total price we could find by $16. These cartridges fit several types of Canon inkjet printers; use the compatibility chart on the product page to check specific models.