I am assuming that you have a bulkhead mounted regulator in your vehicle. When your 6kg propane cylinders run out you will need hose 119869 and adaptor 116921 to allow you to operate from the Gaz bottle. Alternatively you can purchase an adaptor 137523 to allow you to use an Italian gas bottle (which you should be able to purchase locally). You will also need hose 119869 for this arrangement.