Keith,
The taiwanese solenoid is not lousy, they completely cannot be used (those using taiwanese solenoid, don't flame me please). So far I know that those that did use the taiwanese solenoid is burnt out by now.
I've been sourcing for solenoid for sometime now, but so far I only FESTO was the only place I know that has it. The price was around $15~$20. Problem is that does not fit every regulator. If anyone wants to get it, it would advisable to bring your regulator down to FESTO and make sure it fits.
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