The PFI-703 Ink Cartridge from Canon contains 700 ml of ink and is designed for the following printers:
 
imagePROGRAF iPF810, iPF810 PRO, iPF815, iPF815 MFP, iPF815 MFP M40, iPF820, iPF820 PRO, iPF825, iPF825 MFP, and iPF825 MFP M40 Printers