Yes & they are all bulkhead regulators will pol pigtail fittings. now find me a 30mb pol fitting bottle top regulator to screw into the top of a 6kg Calor propane bottle.
Propane to Butane adapter, butane 30 mb Reg, hose onto existing Pipe work. Alternatively use a similar direct mount butane Reg with hose (not reccomended by Me!!)
For your Immediate attention ACES, the fitting in your picture is a USA pol fitting here. Thread is not completely compatible with UK pol fitting bottle, ie Calor due to difference in UTS & BS thread forms. It will fit but will be loose & maybe not gas tight & certainly not best practise.
Fitting you want is this. Or you can use US/UK pol adaptor here.
Hi I have read the post and it looks like bureaucracy wins, my 2017 van has the mandatory 30mB regulator on the bulkhead. However ever appliance label in my van, cooker fridge, water heater all say 37mBar also my external BBQ and external Gas fridge also say 37mBar. So BS EN 1947 is a joke like most regulations that are blindley followed, my external fridge does not like 30mBar, nor does my water heater which occasionally trips, however at 37 mB all works well and if the label on the appliance says 37mBars that is what it gets from me. Ps I will never buy butane