500ML Iv Bag kit complete with fittings, lines and plug already installed. This kit comes with a Baxtor IV Bag, two feet of genuine Tygon fuel line, nylon fittings and aluminum fuel plug. This kit is basically everything you need to install an IV Bag in your boat with the exception of a mount. This kit has one line that goes to the carb and a seperate line for a fill. There is no need for a fuel T with this setup.