Hope this helps, the recoil fuel line is a convenience thing. It stretches out to allow you to reach your plane then it recoils to a more compact length after you're finished fuelling. You connect one end of it to your fuel pump and you put a fueling probe on the other end for sticking into your fuel line at the plane. You need to get maybe a couple of feet of regular fuel line to run from the fuel pump (there should be 2 nipples on it) through the screw on cap of your fuel jug to the bottom of the fuel jug. There should have been a clunk type filter with your flight box accessories. This connects to the end of the fuel line that goes into your fuel jug. Good luck.