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Australia's #1 Water Filter

Whole House Water Filters

Innovative, safe, clean water filtration for every tap in your home. Built to meet Australian plumbing standards.

Why WHOlE OF HOUSE

Transform Your Drinking Water

Experience the difference of truly pure, hydrogen-rich, alkaline water right from your tap.

Complete Protection

Removes chlorine, heavy metals, PFAS, pesticides, and up to 200 harmful contaminants from every water outlet.

Pure From Every Tap

Kitchen, bathroom, laundry — every tap delivers filtered, safe water for drinking, cooking, and bathing.

Protects Your Home

Reduces sediment and mineral build-up, extending the life of your pipes, appliances, and hot water system.

Professional Installation

Quick setup by any licensed plumber, usually completed in ~2 hours with WaterMark certified fittings.

Australian Standards

WaterMark Certified and built to meet Australian plumbing standards. Includes all fittings and stainless steel cover.

Eco-Friendly

Eliminate single-use plastic bottles. One system filters water for your entire household sustainably.

Compare Models

Find Your Perfect Match

All models deliver the same exceptional water quality. Choose based on your water supply

Town / City Water

For homes connected to municipal water supply

Whole Of House

Absolute Fluoride

3 Housing Water Filter System

From
$1,789
$1,699

Whole Of House

Optimal Safe

3 Housing Water Filter System

From
$1,949
$1,859
whole of house installed 01 sm

Tank / Rain Water

For homes using rainwater tanks or bore water

whole of house installed 02 sm

Whole Of House

Natural Tank

3 Housing Water Filter System

From
$1,799

Whole Of House

Defender UV

3 Housing Water Filter System

From
$2,349
Compare Models

Side-by-Side Comparison

All systems are WaterMark Certified and include all fittings. Choose based on your water source.

Feature
Absolute
Optimal
Natural
Defender
3-Stage Filtration
Chlorine & Chloramines
PFAS (Forever Chemicals)
Fluoride Removal
Arsenic Removal
Heavy Metals
Pathogens & Bacteria
Herbicides & Pesticides
Sediment & Rust
UV Disinfection
VOC Removal
Installation

Professional Installation

Every system is designed for straightforward installation by a licensed plumber.

Easy Installation

Quick setup by any licensed plumber, usually completed in ~2 hours.

Main Water Line

Installed where water first enters your home for complete coverage.

Secure Mounting

Plumber connects to incoming supply, mounts the system, and tests flow & pressure.

WaterMark Certified

All systems meet Australian standards for safety and compliance.

On Town / City Water?

Why You Should Filter Town/City Water

Australian town water is treated to be safe — but “safe” doesn’t mean clean. To kill bacteria on its long journey to your home, water authorities add disinfectants and chemicals that you then drink, shower in, and cook with every day.

A whole house filter strips out these chemicals at the point of entry, so every tap, shower head and appliance in your home delivers cleaner, fresher water.

Chlorine & Chloramines

Added to municipal supplies as disinfectants, chlorine creates harsh tastes and odours, dries out skin and hair, and forms trihalomethanes (THMs) — byproducts linked to long-term health concerns.

Fluoride

Added to most Australian town water. Standard carbon filters don't remove it — you need specialised activated alumina media to reduce fluoride from every tap in the house.

Disinfection Byproducts

THMs and haloacetic acids form when chlorine reacts with organic matter in the pipes. You absorb them through your skin and lungs every time you shower or bathe.

Aging Infrastructure

Lead, copper and other heavy metals can leach from older pipework between the treatment plant and your tap, regardless of how clean the source water is.

Bird & Animal Droppings

Roofs collect everything that lands on them — bird and possum droppings, dead insects and rodents — washing pathogens like E. coli, salmonella and giardia straight into your tank.

Bacteria, Viruses & Protozoa

Untreated tank water can harbour Cryptosporidium, Legionella and other waterborne pathogens. UV disinfection is the gold standard for neutralising them before they reach your family.

Roof & Atmospheric Chemicals

Rainwater absorbs airborne pollutants, then picks up paint flakes, zinc, lead flashings and rubber residue as it runs across your roof and gutters.

Sediment, Sludge & Odours

Tanks build up a layer of sludge over time. Even with first-flush diverters, fine sediment, tannins and musty odours make it through to your taps without proper filtration.

On Tank / Rain Water?

Why You Should Filter Your Rainwater

Rainwater feels naturally pure — but by the time it reaches your tap, it has rolled off a roof, sat in a tank and travelled through pipes. NSW Health and enHealth both recommend filtering and disinfecting tank water used for drinking.

Our Natural and Defender UV systems are purpose-built for tank and bore water, removing sediment, neutralising pathogens, and protecting your family with proper sediment, carbon and UV stages.

Frequently Asked Questions

Everything you need to know about UltraStream water filters

A licensed plumber connects the system to your main water line where it enters your home. The system is wall-mounted and typically takes about 2 hours to install. All necessary fittings are included.

For town/city water, choose the Absolute (with fluoride removal) or Optimal (with pathogen protection). For tank/rainwater, choose the Natural or Defender UV systems which are designed to handle sediment, bacteria, and organic compounds common in tank water.

Up to 95% of Fluoride can be removed when the UltraStream is installed with an additional Fluoride Pre-filter.

Filter replacement frequency depends on your water quality and usage. Typically, sediment filters are replaced every 6-12 months, while carbon and specialty filters last 12 months. We’ll provide a recommended schedule with your system.

Our systems are designed for minimal pressure drop. The large blue housings and high-flow filters ensure you maintain excellent water pressure throughout your home.

The Absolute Fluoride system is specifically designed to remove fluoride along with a comprehensive range of other contaminants. The other systems focus on different filtration priorities.


For homes with hard water, we recommend adding magnetic water conditioners to treat calcium, magnesium, and sodium build-up, protecting your pipes and appliances.

Ready for Pure Water?

Have questions? Our team of product specialists is here to help you choose the right system for your home.

Free shipping Australia-wide on orders over $300

Our Happy Customers

Over 2,500 verified 5-star reviews show why thousands of people trust AlkaWay. Our customers consistently share how the UltraStream has transformed their water — and their life.

Ultrastream-0485-457
Proven Experience:

Long Term Reliability

For over 25 years, AlkaWay has been Australia’s leading specialist in hydrogen and alkaline water filtration. We’ve helped more than 50,000 families worldwide enjoy safe, great-tasting, and health-boosting water — straight from their own taps.

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Our Range of Whole House Filters

AlkaWay
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