Canon PIXMA Continuous Ink System for iP4820, iP4920, MG5120, MG5220, MG5320 Printers with 5-Cartridge System This is a 5-tank system compatible with Canon PGI-255PGBK, CLI-226BK, CLI-226C/, CLI-226M/, CLI-226Y 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 5-TANK SYSTEM (WITHOUT GREY INK CLI-226GY)