Swap between propane and butane - what bits do I need?

[seasidejimmy]

Hello,

My caravan has a Truma regulator, as shown the in the photo (1). It also has a propane 'pigtail' connector (photo 2) and is running on propane, no problem.

But, my caravan also has a butane cylinder which I have never used because I don't have the right bits.

To use butane, I reckon I firstly need a butane pigtail but do I also need something to attach to the top of the butane cylinder (photo 3)? Seems like I'm missing some kind of valve to go on the top..?

Could someone please drop a couple of links here so I can see what bits I need to buy so I can start using butane.? Thanks!

 

[JTQ]

Our pig tail's cylinder end is fitted with the left handed thread as used in the UK for the smaller Butane cylinders.
I have adaptors for that pigtail thread that, couple to the POL your propane uses, another that fits the 21mm Clip-on on your Butane cylinder, another for the 27mm Clip-on Gaslights use, a 20mm Clip-on the suits some Continental & other cylinders and somewhere another that adapts to Campingaz 907s.
It offers a very wide base of options, all with the same pigtail.