Media Street Niagara V Pre-filled Continuous Ink Flow System for the Epson R1800 with G-Chrome RB G7 Ink Generations G-Chrome RB (G7) 100% Pigment Ink set was specifically developed and designed for use with the Epson R800, R1800 and the PictureMate offering red and blue in place of Lite Cyan and Lite Magenta.