I just spent an hour googling and found several
threads on RV boards about the watts regulators.
Woodalls Open Roads Forum: Watts H560 Water Regulator arrived in the mail
The watts H560 or the 263A are the way to go.
Similar prices. The RVwaterfilterstore.com
has them at a decent price. I looked pretty hard
and you can find the 263a slightly cheaper elsewhere
but then you'd have to go buy the pipe thread to
garden hose adapter fittings.
These guys sell it with the brass hose fittings already
installed. They say the 263A is slightly better at resisting
sediment. Both are rebuild-able with kits from the
RV store or any plumbing supply that sells watts.
As a 37 year industrial maintenance guy I know we
used watts a lot.
Here's a link. RV Water Filter Store: Water Pressure Regulators for RVs
Kinda pricey but we've suffered for years with the
"cheapo" brass one from Camco. We lost one a couple
years ago (left it on the spigot I guess....) and got
a new one at WallyWorld but it's just the same.
Low flow at best. I also think it lets the water pressure
creep up when you're not using water which is not a good
thing. The whole idea is to regulate the PRESSURE
not the flow.
Darn this RV business sure get's in my pocket