We have the following products, guaranteed to work with your Epson EcoTank ET-2500 ET2500 printer.
Epson 664 Ink Bottle Multipack T6641 T6642 T6643 T6644
Epson T6641 664 Black 70m Ink Bottle C13T664140 T6641
Epson T6642 664 Cyan Ink Bottle C13T664240 T6642
Epson T6643 664 Magenta 70ml Ink Bottle C13T664340 T6643
Epson T6644 664 Yellow 70ml Ink Bottle C13T664440 T6644