If you have a dual or twin supply for two gas bottles in your locker, I am wondering if one tail can be used for the normal propane bottle and the other tail for a Campingaz cylinder or a Butane cylinder? Not sure if the bulkhead regulator would be suitable for both types?
Yes, that works it was my "insurance" configuration when I toured over in Europe, one Gaslight 10 kg, plus one Campingaz for Cadac or if ever I ran out of propane, I could use the Campingaz for the van's gas system. Just needed an adaptor to a LH screw thread. LINK
[Our 27mm clip-on & our POL adaptors all use that common "butane" LH thread, for the interface.]
And I always exchanged one or two 907s refills when in France where its pricing is not utterly as exploitive as here in the good old country.
My regulator, as is also now common here in the UK, is 30mb and suits propane or butane use.