A fitting, and method for mounting the fitting, to a water tank including a wall defining an inlet opening. The fitting comprising a solar shield for mounting to an edge of the wall, the edge defining the inlet opening. The solar shield including a base defining a lower region; at least a first arm extending upwardly from the base, the first arm having a portion that overlies an external surface of the tank when the fitting is fitted to the tank; at least a second arm extending upwardly from the base; and, a solar shield adapted to allow fluid to pass located, wherein the solar shield is adapted to snap fit into the inlet opening when the fitting is fitted to the tank without the use of additional fasteners, joiners and/or adhesives.