5 Best Alkaline Water Filters in 2026

Are you wondering how to improve your health and wellness? If so, you’ve probably heard people talking about alkaline water. So, let's dive in and talk about what alkaline water filters are all about. We'll break down what the pH scale actually means for your drinking water and look at the potential benefits you hear about.

We’ll also walk you through the different kinds of filters available to help you get a clearer picture of which one might be the best fit for you and your home.

You might remember the pH scale from your school days. It’s basically a way to measure how acidic or alkaline something is, on a scale that runs from 0 to 14. A pH of 7 is considered neutral, anything below that is acidic and anything above 7 is alkaline.

This is really important when you consider different water sources. Rainwater, for example, is naturally acidic and typically has a pH between 5.0 and 6.0. Over time, this acidic water can eat away at the copper pipes in your home, which is what causes those tell-tale blue-green stains you might see in your bath or basins. Because of this, the goal is often to raise the pH of your water to a neutral 7.

On the other hand, groundwater or bore water can be the opposite, with a high amount of minerals like calcium and magnesium, making it 'hard' and more alkaline. While the tap water in Australia is generally fine to drink, many people choose to use a filter to create cleaner, healthier water with a specific pH level, often between 7.5 and 9.5.

In a nutshell, alkaline water filters work by raising the pH level of water that runs through them. For water that's acidic, they add vital minerals back in to raise the pH. Even with bore water that's already full of minerals, some systems are designed to create a high alkaline pH reading between 8 and 9.5.

People are drawn to alkaline water for a few key reasons, often looking for high pH water for specific health benefits. Here are some of the things that get people talking:

• Helping to Balance Your Body’s pH: Our bodies are capable of keeping their own pH levels in check. However, the thinking is that modern diets, which are often heavy on acidic foods, can sometimes throw this natural balance out of whack. Drinking alkaline water might help to gently neutralise some of that excess acidity.

• Better Hydration: It’s thought that alkaline water could be absorbed more easily by the body. The theory is that its molecular structure could be a little smaller, which may help you hydrate more efficiently and give your energy levels a nice little lift.

• May Lend a Hand with Digestion: Some people find that drinking alkaline water helps with stomach troubles like acid reflux. By neutralising extra acid in the stomach, it might make it easier for your body to break down food and soak up all the good nutrients.

• A Little Boost for Your Immune System: Alkaline water can contain minerals and antioxidants that may help support your immune system and protect your body from oxidative stress.

• Healthier Skin: By helping to reduce inflammation and oxidative stress, some people feel that alkaline water improves their skin’s health and appearance, giving them a bit of a glow.

Ultimately, choosing an alkaline water filter is a personal decision. It’s always a great idea to weigh up the potential benefits and find a high-quality filter that suits your needs and budget. You’ll certainly find some fantastic options right here with us at My Water Filter.

When you start looking around, you’ll find there are a few different types of alkaline filters to get your head around:

• Mineral Filters: These are pretty straightforward. They use natural minerals, like calcium and magnesium, to raise the water's pH as it flows through the cartridge.

• Reverse Osmosis (RO) Filters: These systems are great at stripping out contaminants and minerals. They’re our number one recommendation for removing nitrates. Then, they add healthy minerals back in to create beautifully fresh, alkaline water.

• Ionising Filters: These use a clever process called ionisation. The water passes over electrically charged plates, which separates it into alkaline and acidic streams.

This standalone system is the ultimate solution for pure water if you do not have a pre-existing whole house filter. It features a robust triple housing design that utilises an 8-stage filtration process to deliver pristine drinking water. The system effectively removes a vast range of toxic contaminants, including chlorine, fluoride, lead, pesticides, PFAS, and heavy metals.

The process begins with a unique 3-in-1 cartridge that handles sediment, carbon, and anti-scale protection, followed by a Disruptor cartridge for chemical and bacteria removal. The high-performance reverse osmosis membrane then eliminates up to 99% of remaining impurities. Finally, the water is remineralised to restore essential minerals and balance the pH. It also comes complete with a leak stop anti-leak detector for total peace of mind.

Designed specifically for homes that already have a whole house water filtration system installed, this twin housing model targets the nasty contaminants that standard filters might miss. It acts as a powerful second line of defence, ensuring that harsh chemicals, fluoride, and pesticides are thoroughly removed from your drinking water.Despite its compact twin design, it packs a punch with a multi-stage filtration process. 

It uses a 3-in-1 cartridge and a Disruptor cartridge to protect the reverse osmosis membrane, which separates pure water from wastewater. To ensure the water is healthy and great-tasting, a final polishing cartridge adds essential minerals back in, alkalising the water. Like its triple housing counterpart, it includes an auto shut-off leak detector for safety.

This triple under-sink system is a fantastic all-rounder for families, delivering high alkaline water without the need for a reverse osmosis membrane or a storage tank. It is an ideal choice if you want to retain beneficial minerals while stripping out the bad stuff. The 4-stage process starts with a 3-in-1 sediment and anti-scale cartridge to protect the system and improve water clarity.

It features a dedicated USA-made Omnipure fluoride removal cartridge and a Disruptor cartridge to handle bacteria, viruses, and heavy metals. The final stage uses an Omnipure Alkaliser cartridge to elevate the pH and enhance the water with beneficial minerals. It is easy to install, making it perfect for renters, and comes standard with a leak detection shut-off valve to protect your kitchen.

NOTE: Please get in touch with Sales at 02 5562 0255 if you need Low Alkaline.

Now, this one is a bit different. The UltraStream is a natural water ioniser that does much more than just filter. It infuses your water with a massive amount of hydrogen gas and magnesium. It’s an extreme filtration system made in the US with world-class filter media that reduces fluoride by up to 80% and lasts for up to 3,000 litres. Its standout feature is the hydrogen infusion, and it also adds minerals to give the water a beneficial alkaline pH of 8–10.

The Filteroo® Steel is a fantastic gravity-fed system that not only looks great but also creates beautiful-tasting, healthy water. Whether you're using rainwater or tap water, the Filteroo® does a brilliant job of filtering it. Its gentle, gravity-based filtration gives the water plenty of contact time with the filter media, which is key for removing unwanted contaminants. If you notice the water flow slowing down, it's likely just sediment that's collected on the outside of the cartridge.

With a few great options to consider, it can feel like a big decision! Here are some key things to keep in mind to help you find your perfect match:

• Type of Filter: Think about what you really need. A reverse osmosis system will give you the highest level of contaminant removal. Also, have a think about whether you want a system neatly tucked away under the sink or one that sits on your benchtop.

• pH Level: Different filters produce different pH levels. If you have a particular level you’re aiming for, choose a filter that can get you there.

• Cost: Prices can vary quite a bit, and RO systems can be expensive. It's a good idea to have a budget in mind and don't forget to check the price of the replacement cartridges, too.

• Maintenance: All filters need their cartridges changed, usually about once a year. For some types, like ceramic cartridges, you can simply take them out and give them a scrub if the flow slows down.

• Contaminant Removal: Consider what type of contaminants you want to remove. Whether that's PFAS, chlorine or microplastics, it's important to know which type of contaminant you want to get rid of to select the appropriate water filter to address that.