Water pressure regulator question (yet another)

I've no experience with that oem auto regulator, but most RV gadgets are of cheap design. I would use a high quality adjustable unit at the source. One with a gauge on it, set 50-60 psi. My method is to fill my fresh tank, and use my pump, which supplies good pressure at all faucets, including the shower. It is safer too, and handy to just switch off, overnight, or if you leave the camper.

Jerry