BWT Thero
BWT Thero

Thero 90

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: 821100
  • Easy installation
  • No storage tank required
  • Easy membrane change

Product Benefits

Product details

Pure water, free of microplastics and nanoparticles, directly from the tap - independent of the local water quality. Clean water that can be used, drunk and fully enjoyed without hesitation: this is one pillar of health. Water of this quality is not always available. Salts, odour and taste-impairing substances, agricultural or drug residues, but also microplastics and bacteria can affect the purity of water.
It is possible to obtain pure, fresh water at home at any time – regardless of the quality of the tap water. The powerful and space-saving BWT THERO 90 & THERO 90 PRO from BWT’s new generation of reverse osmosis – makes it possible. Just turn on the tap and wash fruits or vegetables, or fill a glass with fresh, pure water!

  • Produce 1,5 litres of water per minute - on demand

As the BWT THERO 90 PRO with Bluetooth connection or as manual basic version THERO 90. With the mobile App (only available in the PRO version) the device can be easily controlled and monitored. The app is connected to the end device, tablet or smartphone via Bluetooth. » Monitoring water quality - permeate (in TDS or μS/cm) » Input water meter for monitoring water consumption » Operating hours counter » Status and alarm indication

Technical details

  80 120 
Item n° - RO 821100 821105
App -  ✓
Membrane flushing
Interval membrane flushing   -
Performance at 15 °C l/h 90
Number of people (approx.) 1/6
Salt retention >98%
Yield approx. 50%
Max. raw water hardness 20 °dH
Iron (Fe) & Manganese (Mn) <0,05 mg/l
Silicate (SiO) <15 ml/l
Total dissolved salt content <500 mg/l
Blocking index (SDI) <3% / min
Oxidizing substances <0,05 mg/l
Power supply 230 V / 50-60 Hz
Maximum power consumption 100 W
⌀ water inlet pipe 3/4"
⌀ permeate 1/4"
⌀ concentrate 1/4"
Water inlet pres­sure (min./max.)  1,0 / 4,0 bar
Dimensions (WxDxH) mm 121x264x451
Weight kg (approx.) 9
Mate­rial of construc­tion Aluminium
Filter exchange At least every 2 years