Question about Epson ET-2710 EcoTank

Hello. I would have liked to quickly order the EcoTank ET-2726...but the whole thing on your website overwhelms me a lot. For example: the Epson ET-2710 is offered in different versions. But you can't see the difference at first glance and also not at 2 and 3. I don't want to spend hours researching to be sure what I'm getting when I order. I wish there was more clarity and more accurate product detail. MfG...