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.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets