xvalve value

[DanMan]

what is an older xvalve that says Xvalve on the side worth.
thanks

[pk5]

I don't think the xvalve is old in comparison to say valve that said : retrovalve, minivalve or evalve.

It is worth anywhere from $180-230 ish depend on condition.

[TwilightG]

It is worth anywhere from $180-230 ish depend on condition.

... and if spare parts are included.