I had problems with my (propane) gauges not working at all. I didn't realize I needed a second stage regulator. I have already bought another regulator that only reduced psi pressure (adjustable) but not enough to run the water heater, dryer and stove. I didn't want to buy a two stage regulator because the first would be useless, a waste of money. So this (single) second stage regulator works fine.
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