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 pH9.
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
Under Sink Reverse Osmosis Filter


System price from $995

FREE installation by qualified technician

Includes cartridges for first 12 months of use

Comes with a 10 year care plan & $750 savings

No-quibble 1 year service guarantee

Solid 2 year product warranty

Keep your current tap or upgrade

Annual running costs of just $195
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.
It also makes water alkaline pH9 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 pH9): 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 3Elite Series 2
Under Sink Alkaline & Mineral Filter


System price from $695

FREE installation by qualified technician

Includes cartridges for first 12 months of use

Comes with a 10 year care plan & $750 savings

No-quibble 1 year service guarantee

Solid 2 year product warranty

Keep your current tap or upgrade

Annual running costs of just $195
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 pH9 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.
- Improved digestion –Alkaline water has a higher pH level that hydrates the colon and removes toxins and free radicals from the digestive tract.
- Increased energy and metabolism – By restoring a healthy pH level, alkaline water can help neutralize acids in the body. This can lead to increased energy and improved metabolism.
- Reduced bone loss –Alkaline mineral water lowers bone resorption, resulting in better bone strength and reduced risk of osteoporosis.
- Slower aging – It has been found that alkaline water has antioxidant effects that may delay the aging process.
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
Elite Series 1
Under Sink Basic Filter


System price from $375

Includes cartridges for first 12 months of use

No-quibble 1 year service guarantee

Solid 2 year product warranty

Keep your current tap or upgrade

Annual running costs of just $145
Having a small under sink water filter at your home allows you to save money on bottled water.
Our basic water purifier, the Elite Series 1, is designed to filter hazardous chemicals and toxins. You can have peace of mind knowing that your water is clean and safe to drink.
Our under sink water filter system can remove dissolved solids down to just 1 micron in size, including:
- Dirt, rust, and mud
- Chlorine, pesticides, and odour
- Heavy metals and bacteria
Our Water Filter Installation Process
At Great Water Filters, we make the installation process easy for you…

Compare Systems
Use our quick and simple comparison table below to find the perfect under sink water filter for your needs

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

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