The tray is included. This 25" hookah stem is likely compatible with a wide array of bases, bowls, and hoses that you already own. If you re not sure please ask us and we will recommend a base and a head. The hookah stem is compatible is almost every hose out there, you need to play with the grommet to ensure tight fitting. The hookah is made of Stainless steel, will never rust or discolor.