For showers, drinking, and cooking, this universal 67l (17.7gal)water tank mounts to the Front Runner Rack or any flat surface with ourFront RunnerUniversal Roof Mounting Brackets for UniversalWater Tank. Moulded withslotsalong the sides of the tankto accommodate tie-down straps. 67l (17.7gal) capacity. Made from food grade polyethylene and is BPA free. This tank has plasticpipe fittings andTheFront Runner Water Tank Hose Kitfor this water tank is sold separately. In order to mount to Front Runner Roof Racks,you will needFront Runner's Universal Roof Mounting Brackets for UniversalWater Tank - 67l/17.7gal.