We have a Watts Adjustable 263A Regulator,
2" diameter 0-160 gauge, 4-4.5 gpm from the
RV Water Filter Store: RV Water Filter Store: Standard Filter Canisters for Whole RV
I googled all over the place a couple years back and these guys had
the best price. I could find the regulator for a little less elsewhere but when
I added the gauge and the 2 brass hose adapters that come with it, the price
was more elsewhere.
I know it's pricey but if you're gonna be at this a while you'll be glad to
have it. We used the little in-line brass type sold at many RV stores and
even the RV isle in WalMart but it was low flow AND it often let the pressure
creep up over nite or just between use of water. When we turned on a
faucet or flushed there would be a big whoosh of water then low flow.
The whole idea of a regulator is to regulate NOT let the pressure creep up!!
They now have a stainless oil filled gauge for $10 more. I wish I had that.
My gauge is black painted and it's starting to rust behind the glass from
being out in the rain.
Oil filled gauge won't do that.
One caveat-- it's real easy to disconnect the hose and put it away and
then stow your power cord and your chocks etc etc.... and forget to
get your regulator off the camp ground spigot!!
Don't leave it hanging there for the next guy!!