Hi guys. I have an Eriba 310gt and this is my first ever caravan. I am officially clueless. I’ve bought a 7kg flogas cylinder and want to connect it to my van but it would appear I have two female screw in connectors both ends, one on the pipe that is connected to the caravan and one on the gas cylinder. What do I need to get to connect them up? Thanks and apologies for what must be a total dumb question!!