France gas pigtail - Help

Try Narbonne Accessoires store near the airport at Tours. Exact address will be on their website.

If you go to any dealer selling French bottles (Le cube, Atargaz, Primagas etc) should be able to fix you up with a contract for a bottle and a suitable pigtail. This will then be useful for all future trips. Remember, French gas is also usable here!
I have a Gaslow refillable but I also carry a Repsol bottle for Spain, really useful as another option. You might consider a refillable if you're going to do lots of continental travel.

this link might help https://en.selectra.info/energy-france/guides/propane/bottles

I agree, get one of the major brands (ELFI is another), readily available from filling stations. Camping Gaz is a very expensive option.