Reverse Osmosis (RO) is a system in which a membrane is used to filter out light weight molecules such as salt and hardness (have a look at the video). This is the designed function of an RO system and any other molecules will foul the membrane. It is of utmost importance to have the adequate prefiltration to ensure the RO system operates as intended.


We specialize in designing complete RO systems from prefiltration through to remineralization, ensuring that your investment operates as expected. Let us provide you with the high quality turnkey system you have been looking for.

How it works

Read more

  • Engineered to fit

  • Low energy

  • High salt rejection

  • Nano filtration 

  • Fully automated


250LPH Unit         - R33 915 ex VAT

500LPH Unit         - R40 540 ex VAT

1000LPH Unit       - R64 700 ex VAT

1500LPH Unit       - R82 225 ex VAT

We can design the size you need. Please note: the prices displayed are RO units only without prefiltration. 


Integrate with your municipal source using our Water-to-Home controller.

Reverse Osmosis systems are often misunderstood, which can result in costly replacements. In order to correctly design a RO system we need:

  • A comprehensive water test of the water to be treated

  • The volume of clean water (permeate) required. Typically RO systems are rated in Liters Per Hour (LPH)

RO systems reject up to 99.5% of all ions in the water, resulting in a virtually pure water. This is perfect for water bottling, guaranteed drinking quality or even salt removal. 

These RO systems can also be referred to as Nano Filtration systems and operate with a low energy membrane. This reduces the needed osmotic pressure (ranges from 5 to 10 bar) and is suitable for fresh water, municipal water, or slightly saline applications (up to 1000 TDS). 

Tel.: 021 013 0276

Unit 4 Lochlo Building,

8 van der Berg Crescent,

Strand 7140

Cape Town

South Africa

Copyright © Greenchain Group, TA Greenchain Privacy Policy