CONCEALED MODULES / BENEFITS / 5-year warranty on the cistern of the concealed module. 10-year warranty on the frame of the concealed module. Flushing mechanism with a 6 litre or 3 litre water volume option Factory setting for the concealed module is 3/6 l. Flushing mechanism with a 2 litre or 4 litre water volume option. Economic fl ushing mechanism with a 4,5 litre or 3 litre water volume option. Load capacity of the module is tested at 400 kg. Construction of the module saves on space. 116 /