Canon PGI-525 BK BL SEC monobloc cartridges iP4850 Inkjet Printer / MG5150 / 5250/6150/8150 Black Blister secure (Office Supplies)
after setbacks with non-canon cartridges, I returned to the brand itself and I have no worries ... except that the printer (Pixma) reports nearly empty cartridges and change, while I printed several pages of dozens more! but c'st the printer, not the