100 to 200 litres/day (26 to 52.8 USgal.) at 3 to 6 bar (43 to 87 PSI) and 15 deg. to 25 deg. Celsius (59 deg. to 77 deg. F). TUNZE® RO Station 8550 is a high-quality reverse osmosis plant used to produce pure water. In aquarism it is especially suitable for marine and fresh-water aquariums. RO Station 8550 consists of a 20 µm sediment filter, a 5 µm carbon sediment filter, a .5 µm carbon filter and a thin-film composite membrane (polysulfone compound).
