The FilterMaster Ultrapur Resinfilter expands the OSMOPower 2.0 Osmosis system to a 4-stage system. It is not possible to neutralise particularly hihj values of individual substances using the reverse osmosis. For example, a high level of silicic acid or nitrate. By installing a 4th step in the form of the FilterMaster Ultrapur Resin filter even the smallest residues of silicates and nitrates can be removed completely from water. The result is purest water with an average conductivity of 0.1S/cm.The transparency, refillable filter cartridge contains cation and anion resin (H+ and OH-) at a ratio of 1:1. With colour indicator: colour changes form blue to light brown when the resin is exhausted.Scope of delivery: clear filter cartridge incl hose cennector filled with 300 ml of Ultrapur resin. Two clips for attachment to the membrane pressure casing. Please order the pressure hose for connecting the filter separately.Also suitable for many standard osmosis units from other brands.