Unless you have a fixed bulkhead regulator in a caravan or motorhome (in which case you'd need a different high-pressure "pigtail" hose between the cylinder and the regulator) you would need a different cylinder-top regulator to fit whichever cylinder you're using.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.