BCH&reg Continuous Ink System for Canon PIXMA MG6120, MG6220, MG8130 Printers with 6-Cartridge System Compatible with Canon PGI-255PGBK, CLI-226BK/C/M/Y and CLI-226GY (Grey) Prefilled with premium UV-resistant Dye Ink, meet or exceed OEM specifications on colors, pH, surface tension, viscosity and filtration Auto-reset permanent chip installed. No need to change chips. Advanced TL series reservoirs auto-balance the pressure of the ink This is a SIX tank system with CLI-226GY Grey Ink