Where can I find a regulator(water pressure) for a camper (RV).?

You can find a water pressure regulator for your camper (RV) at most outdoor or camping supply stores, such as REI or Cabela's. Additionally, major retailers like Walmart or Home Depot often carry them in their RV or Plumbing sections. Online marketplaces like Amazon or specialized RV supply websites also offer a wide selection of regulators. Make sure to check the specifications to ensure compatibility with your RV's system.