Whole House Water Filter Systems Australia

Protect every tap in your home with a whole house water filter system from Alkaline World — Australia's trusted authority in water and wellness. A whole house (point-of-entry) system installs on your main water line, so filtered water flows to your kitchen, bathrooms, showers, laundry and outdoor taps. Our range includes the Australian-designed Aquarius whole house systems in twin and triple-stage configurations, compact 10" x 4.5" options for smaller homes, premium stainless steel covers for a clean finished installation, and specialised systems for fluoride and PFAS removal.

Why Choose a Whole House Water Filter?

Chlorine, chloramines, sediment, heavy metals and other contaminants don't just affect drinking water — they're in the water you shower in, wash clothes with and cook with. A whole house filtration system addresses water quality at the point of entry, protecting your family, appliances and plumbing throughout the home. High-flow designs (up to 50–60 litres per minute) mean no drop in water pressure.

Which System Is Right for Your Home?

Larger households and families typically suit our 20" x 4.5" triple-stage systems, while apartments and smaller homes may prefer the compact 10" x 4.5" format. If fluoride is your priority, choose a fluoride removal configuration; for PFAS "forever chemicals", our dedicated PFAS removal system uses certified Disruptor® filtration. Not sure? Talk to a real human water specialist on 03 9357 1777 or use our Water Filter Buying Guide.

Frequently Asked Questions

How often do whole house filters need replacing?
Typically every 12–18 months depending on your local water quality and household usage. Replacement filter sets for all our systems are available here at Alkaline World.

Do I need a plumber to install a whole house system?
Yes, professional installation on your main water line is recommended. We offer installation for standard fittings (Melbourne metro).

Will a whole house system reduce my water pressure?
Our large-format systems are designed for high flow rates, so properly sized and maintained systems maintain strong household pressure.

Free Australia-wide shipping on orders over $100. 30-day money back guarantee.