Best Under Sink Water Filters in Australia

A built-in water filter under the sink connects right to your waterline and filters water directly to your faucet or through your refrigerator.

It can remove many harmful contaminants that may be detrimental to you and your family’s health.

At Great Water Filters, you can enjoy clean drinking water straight from the tap.

Our full range of under sink water filter systems remove contaminants and replace them with healthy minerals, creating a perfectly balanced pH7+.

Find the best under sink water filter for your home today.

Great Water Filters Australia offers a selection of filtration systems equipped with new generation technology for improved convenience and maintenance.

Our under sink drinking water filter is designed for fast and simple cartridge replacement.

The installation can be done in homes, offices, and workplaces, 100% free.

Elite Series 3

Ultimate Reverse Osmosis + Alkaline + Re-Mineraliser

under sink reverse osmosis filter


Reverse osmosis (RO) is a water purification process that uses a semipermeable membrane to remove total dissolved solids or contaminants. 

These semipermeable membranes feature tiny “pores” designed to produce a more concentrated and refined form of drinking water than standard, unfiltered tap water.

Our Elite Series 3 is the best under sink water filter in Australia. This Reverse Osmosis water filter system removes up to 99.5% of contaminants from tap water. And removes 99% Fluoride.

It also makes water alkaline pH7+ and enriches it with essential minerals, such as magnesium, calcium, and potassium.

With our Reverse Osmosis water filters, you can get the closest thing to pure H2O. The filtration process is designed to remove dissolved solids down to just 0.0001 micron in size. It gives you and your family access to the purest form of drinking water.

Our Reverse Osmosis system comes with a standard, comprehensive 4 stage filtration process:

  • Stage 1 (5 Micron): Removes dirt, rust, and mud
  • Stage 2 (2 Micron): Removes chlorine, pesticides, and odour
  • Stage 3 (0.0001 Micron): Filters heavy metals, fluoride, and bacteria
  • Stage 4 (Balances Alkaline pH7+): Puts back calcium, magnesium, and potassium

We also regularly install systems with 5, 6, or even 7 stages of water filtration. These additional stages provide an unparalleled level of water purification, including UV technology to eradicate bacteria and viruses.

Learn More – Elite Series 3 BUY NOW

Elite Series 2

Super Filtration + Alkaline + Re-Mineraliser

under sink alkaline and mineral filter


The purpose of an alkaline water filter system under sink is to remove unwanted impurities. Our Elite Series 2 is a comprehensive filtration system that purifies water and puts all healthy minerals back in.

This specialized alkaline and mineral filter removes dissolved solids down to just 0.2 micron in size. It provides you with pure, odour-free, great-tasting, and healthy drinking water.

Our alkaline cartridges create perfectly balanced pH7+ water. The filtration process separates water into alkaline and acidic elements.

The clusters of H2O in alkaline are considerably smaller, enabling the body to absorb it more easily. For this reason, alkaline is regarded as one of the most hydrating forms of water with significant health benefits.

Aside from providing the benefits of alkaline, our under sink water filters can return essential minerals to your water.

  • Calcium: Improves bone health, regulates hormones, reduces PMS triggers, and provides positive effects on your metabolism
  • Magnesium: Maintains nerve function, keeps muscles relaxed, and regulates blood pressure, heart rate, and blood sugar levels
  • Potassium: Balances the body’s vital functions (especially the heart) and lowers blood pressure or risk of stroke

Learn More – Elite Series 2 BUY NOW

Our Water Filter Installation Process

At Great Water Filters, we make the installation process easy for you…

Add your details to our form or call our experts to answer any questions and book your FREE installation

One of our professionally qualified technicians will install your water filter at a time most convenient to you

We’ll send you a reminder to replace your cartridges every 12 months, it takes just a few clicks!

Not Sure Which Filter is Right for You?

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Servicing over 25,000 Australians

You & your family can enjoy unlimited, pure water today

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