Installation RO (reverse osmosis), engageable with at least a dialysis apparatus, to supply a highly clean permeate, with an inlet of raw water (1), which supplies the raw water through a valve (4) to a supply container (5) with a control fill level, from which a duct (9) leads through a pump (7) to a filter module (10), whose primary space ( 11) it is separated by a semipermeable membrane (49) of a secondary space (12) which is connected to a distribution system for the permeate, which has a supply duct permeate (23) with at least one connection ( 25), which can be coupled said at least a dialysis apparatus, and a return conduit for permeate (24), wherein the outlet valve (29) permeate is inserted, through which the permeate can flow out into the feed vessel (5), have do the distribution system permeate at least one device (32, 28) for cleaning and / or disinfecting, and a circulation pump (27) which are arranged in a circulation circuit also driving an outlet conduit concentrate from the primary space (11) of the filter module (10) to the feed vessel (5), characterized in that the secondary space (12) is formed by a permeate collecting (48) perforated pipe, disposed inside of a membrane bags arranged in a spiral, which is connected via a connection at both ends to the circulation circuit being itself connected with the return duct permeate (24) with its other end, such that the circulation circuit, in which the permeate can flow is formed.Instalación OI (de osmosis inversa), que se puede acoplar por lo menos con un aparato de diálisis, para suministrarle un permeato altamente limpio, con un conducto de entrada de agua sin depurar (1), que suministra agua sin depurar a través de una válvula (4) a un recipiente de alimentación (5) con una regulación de nivel de llenado, desde el cual un conducto (9) conduce a través de una bomba (7) hacia un módulo de filtro (10), cuyo espacio primario (11) está separado por una membrana (49) semipermeable de un espacio secundario (
