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Reverse Osmosis Water Filter in Singapore

Coral Pure Natural’s reverse osmosis (RO) filtration system ensures that all toxins and impurities found in water are thoroughly filtered, leaving pure alkaline water. Through this process, we can assure our clients that they are drinking water of the highest quality.

Premium 9 Series Incorporates Reverse Osmosis Technology

The Reverse Osmosis Process

Reverse osmosis is a water filtration process that uses a semi-permeable membrane (synthetic lining) and pressure to filter out contaminants, sediments, salt ions, Total Dissolved Solids (TDS), and even micro-organisms. Only water molecules can flow through and pure water will be left behind. It is the only certified filtration to remove nuclear, arsenic and radioactive substances.

Getting Rid of Total Dissolved Solids (TDS) in Water Through Reverse Osmosis Water Filters

TDS (Total Dissolved Solids) are essentially a measure of harmful impurities, minerals or anything dissolved in water that is not an H2O molecule. TDS removal can easily be done through the use of reverse osmosis. This process is carried out through the water filters in our water dispenser systems. Common types of TDS and heavy metals include the following:​

  • Aluminium

  • Arsenic

  • Cadmium

  • Chloride/Chlorine

  • Copper

  • Fluoride

  • Herbicides

  • Iron

  • Lead

  • Mercury

  • Sulfate

Benefits of Coral Pure’s Reverse Osmosis Technology

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1. Remove Contaminants

Coral Pure Natural’s reverse osmosis alkaline hydrogen mineral water system includes progressively finer membranes that remove contaminants from your water such as harmful TDS, fluoride, heavy metals as well as 0.0001 microns bacteria and viruses.

95% of RO water purifiers are unable to effectively filter and remove fluoride. Only USA ANSI/NSF 58-certified reverse osmosis (0.0001 micron) filtration systems can effectively remove fluoride, heavy metals, and other contaminants. However, only about 5% of water purifiers in the market incorporate the reverse osmosis system.

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2. Better Health

Our comprehensive natural antioxidant alkaline hydrogen mineral crystal-energising water dispenser gives you naturally ionised structured water that has the ability to detoxify your system, keeping you in good health.


We do not recommend drinking pure RO water without sufficient essential alkalinity (minerals). This is why our tankless water purifier systems in Singapore have additional alkaline minerals filters to provide natural, organic alkaline minerals that are commonly found in natural spring water. The re-mineralisation process will take place after the reverse osmosis filtration.


3. Simple Maintenance

​Most brands offer only 3500L to 5000L per filter change. With regular cooking, the water filters have to be changed twice minimally for a family of four and above. However, our Coral Pure Premium 9 are heavy-duty systems with more filters at bigger sizes. 10,000L are available for cooking and washing from the faucet as well as another 10,000L for drinking from the tankless hot dispenser. The filters only have to be changed once a year, keeping the maintenance costs low. Most users prefer purified water for cooking and washing as chlorine and toxic chemicals can be absorbed into food within a few seconds during preparation, affecting taste, food quality, and overall health.

Coral Pure’s Alkaline Water Filtration

Our alkaline water filtration system has two main functions:


  1. Remove harmful substances from the water 

  2. Enrich the filtered water with natural alkaline minerals from precious stones.

Your water will go through a rigorous alkaline RO filtration​ process, with up to 15 stages. The number of filtration stages and water filters will vary depending on the type of alkaline water purifier bought.

Frequently Asked Questions About Reverse Osmosis Water Filtration Systems

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