Compact system for trade and industry Eight different sizes available, from 125 l/h up to 2,000 l/h MSR-tronic controller with graphical display to visualize and trigger the water softeners type duo WE-MSR, the reverse osmosis and the permeate tank with pressure booster pump Combi-cap pressure vessel for optimum flow distribution on the membrane elements; quick-acting plug-in couplings for single, series and block mounting; easy increase of the permeate capacity by quick installation of an additional pressure vesse