INKXPRO Brand XPRO series 4 X 250ml Professional Ultra True Color Dye Base ink refills for workforce WF printers and Eco-Tank printers Professional True Color dye base ink for Epson 4 color Workforce printer and Eco-Tank printers 4 X 250ml ultra true color ink refills. Ideal for everyday printing, these ultra high-capacity inks go longer between refills for unbeatable convenience For use with: Eco-Tank Expression ET-2500, Expression ET-2550, WorkForce ET-4500 For use with: Workforce WF 3520 3540 3620 3640 7010 7510 7520 7110 7610 7620 840 845 630 printer