R270
Ink cartridge: T0821 (K) , T0822 (C) , T0823 (M) , T0824 (Y) , T0825 (LC) , T0826 (LM)
For use on:Epson PHOTO R270 / R390 / RX590

C79
Substitute cartridge: T0731 (K) , T0732 (C) , T0733 (M) , T0734 (Y)
For use on:Epson STYLUS C79 / CX3900 / CX4900 / CX5900