What Is a Reverse Osmosis Water Filter?

A reverse osmosis water filter system (commonly known as an RO water filtration system) is an advanced water purification technology designed to deliver clean, safe, and great-tasting drinking water. Reverse osmosis works by forcing water through a semi-permeable membrane that allows only pure water molecules to pass through, while blocking harmful contaminants such as dissolved salts, heavy metals, chemicals, and microorganisms.

By applying pressure, a reverse osmosis system effectively removes impurities at a molecular level, making it one of the most reliable and effective methods of drinking water filtration available today.

Our Reverse Osmosis Water Purification System

Our Refresh Water Filtration reverse osmosis systems feature multiple filtration stages, providing an added layer of protection after water has already passed through our 3-stage whole house water filtration system. Each filter is manufactured to the highest standards and is NSF and WaterMark certified, ensuring safety, performance, and reliability.

Our reverse osmosis water purification system is engineered to remove a wide range of contaminants commonly found in tap water. These include:

  • Dissolved salts and ions

  • Bacteria and viruses

  • Fluoride

  • Pesticides and herbicides

  • PFAS and PFOA

  • Other harmful chemicals and impurities

Depending on the incoming water quality, our reverse osmosis filtration system can remove up to 99.8% of contaminants, delivering exceptionally pure drinking water for your household.

Better Taste, Odour, and Peace of Mind

One of the key benefits of installing a reverse osmosis water filter under the sink is the noticeable improvement in the taste and odour of drinking water. By removing contaminants that cause unpleasant smells and flavours, reverse osmosis systems produce clean, refreshing water ideal for drinking, cooking, and food preparation.

These systems are widely used in residential homes and are discreetly installed under the kitchen sink, providing purified water on demand.

Maintenance and Long-Term Performance

Like all water filtration systems, reverse osmosis water filters require routine maintenance to ensure optimal performance. This includes regular filter replacements and periodic system sanitisation to prevent bacterial buildup. Proper maintenance helps extend the life of the reverse osmosis membrane and ensures consistent, high-quality water purification over time.

Clean, Safe Drinking Water You Can Trust

Our under sink reverse osmosis water filtration systems are trusted for their ability to deliver clean, safe, and great-tasting drinking water. Using advanced membrane technology and multi-stage filtration, they effectively remove a broad range of contaminants—including PFAS, PFOA, fluoride, and chlorine—making them an excellent choice for health-conscious households seeking premium water quality.