Review on 🖨️ GPC Image Compatible Ink Cartridge Replacement for Canon PGI-270 271 PIXMA MG6820 MG6821 MG7720 MG5720 MG5722 TS6020 Printer Tray, 12 Pack - PGBK, Black, Cyan, Magenta, Yellow by Derrick Duck

I liked that there was a "generic" equivalent for the very expensive brand name of these ink cartridges. A double set at half the price of a single Canon set. What I don't like is that instead of two blacks and two grays, they sent four small black cartridges. I've tried running a Canon MG7720 with two small black cartridges but there won't be any in the car. I would like the supplier to provide me with two gray cartridges overnight at no extra charge.