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The BWT Thero 90 reverse osmosis cartridge is easy to replace, just screw in and out, and includes pre and post filters as well as a specialist reverse osmosis membrane in one compact eco friendly cartridge shell. The sealed filter cartridge dramatically reduces the risk of contamination when changing the cartridge.
The reverse Osmosis cartridge should be changed at least every 12 months when used in accordance with the manufacturer’s instructions. It may be necessary to change it sooner if your water usage is high or the cartridge is left idle for a long period of time.
Thero 9O Replacement Cartridge Performance figures refer to Thero 90 and 90 Pro only. |
 Dimensions (D x H) (mm) | 130 x 425 |
 Performance at 15º c  (l/h – l/min | 90 / 1.51 |
 Min.Inlet pressure (bar) | 2.0 |
 Ambient temperature (ºc) | 5 – 40 |
 Water temperature (ºc) | 5 – 30 |
 Salt retention | >98% |
 Yield approx | 50% |
 Max, raw water hardness (dH) | 20 |
 Iron (Fe) & Manganese (Mn) (mg/l | <0.05 |
 Silicate (SiO) (ml/l) | <15 |
 Total dissolved salt content (mg/l) | <500 |
 Blocking Index (SDI – Silt Density Index) | <3% |
 Oxidising substances (mg/l) | <0.05 |
 Filter exchange | At least once per year |