anybody know anything about these electric valves??

[toyota40runner]

http://www.evsco.com/electrically_actuated.htm

[inboardsonly]

Those are interesting, there are some readily available S/S ones from
VETUS, that you can get from a marine supply place, too.

I have used the Vetus units in salt and extreme (hovercraft in the arctic) and they have worked flawlessly.