The emco 723 Design swimming pool grating offers flexible covering for overflow-channels. It consists of a rigid plastic cassette that serves to hold tiles with a thickness of at least 7 mm. That makes it possible to choose tiles irrespective of the manufacturers. In this way, the same tiles can be used for the grating, which is suitable for straight pool configurations and mitred corners, as for the pool surround, thereby resulting in a harmonious and visually appealing effect. The plastic cassette is furthermore prefabricated to meet the relevant conditions of the pool concerned.