Whole House Filters
Whole House Water Filters Australia
Clean water from every tap in your home. A whole-house system filters water where it enters your property, so your shower, kitchen, laundry and garden all get filtered water. Choose your system in three steps:
- Know your water source. Mains, rainwater or bore water. Each one needs different media.
- Pick your priority. Sediment and chlorine, fluoride, PFAS, or all of them.
- Size it to your home. The 20" x 4.5" systems suit most family homes. The 10" x 4.5" compact systems suit smaller homes and tight spaces.
Not sure which system is right? Book a free 15-minute water consult with Richard. Call 03 9357 1777, or send us your water source and household size.
- 5-year warranty on our whole-house systems
- We recommend installation by a licensed plumber
- Pay over time with Zip or Afterpay
Compare our whole-house systems
| System | Filtration focus | Cartridge format | Cover | Filters per year | Price from |
|---|---|---|---|---|---|
| Aquarius Compact Triple | 3 stages, compact | 10" x 4.5" | — | $279 | $699 |
| Aquarius Twin System | 2 stages | 20" x 4.5" | — | $399 | $975 |
| Aquarius Triple | 3 stages, cartridges chosen with our team | 20" x 4.5" | — | $495 | $1,203 |
| Triple System Stainless | 3 stages, compact | 10" x 4.5" | Stainless steel | $279 | $1,257 |
| Aquarius Triple Stainless | 4 filter-set options | 20" x 4.5" | Stainless steel | $287 | $1,795 |
| Aquarius Fluoride Triple (Purple Series) | Fluoride reduction, up to 50 L/min | 20" x 4.5" | — | $699 | $1,895 |
| Aquarius PFAS Removal Triple System | Sediment, carbon, Disruptor | 20" x 4.5" | Stainless steel, front and back | $495 | $1,995 |
| Aquarius PFAS Marine Grade | Sediment, carbon, PFAS (Disruptor) | 20" x 4.5" | Marine-grade stainless | $495 | $2,195 |
| Aquarius Fluoride & PFAS Triple | Sediment, fluoride, Aragon or Disruptor | 20" x 4.5" | Stainless steel | $699 | $2,495 |
| Aquarius Fluoride & PFAS Removal System + Marine Grade Cover | Sediment, fluoride, Disruptor | 20" x 4.5" | Marine-grade stainless | $699 | $2,495 |
| AquaCo Triple Stage System | Sediment, carbon, Aragon | 20" x 4.5" | Stainless steel | $489 | $2,595 |
| Aquarius Ultimate Whole House System | Whole-house plus M25 drinking-water system | — | — | $1,018 | $3,895 |
Filters per year is the typical annual cost of replacement cartridges. Actual replacement timing depends on your water quality and household usage.
Why Choose a Whole House Water Filter?
- One central filtration system serving multiple household outlets
- Options designed to target sediment, chlorine taste and odour, fluoride or other specified substances
- High-capacity housings and cartridges for household water demand
- Compatible replacement filters and service parts available for ongoing maintenance
Choosing the Right System
Compare your incoming water quality, household size, peak flow requirements, available installation space and the substances you want the system to reduce. Check the specifications for the exact cartridge combination because performance varies between sediment, carbon, fluoride-reduction, PFAS and multi-stage systems.
We recommend installation by a licensed plumber. Confirm pipe size, water pressure, flow rate, drainage or bypass requirements and access for future cartridge changes before purchasing. If you are unsure which system suits your property, use our water-testing tools for routine household checks and read the Australian home water filter buying guide.
Replacement Filters and Maintenance
Regular cartridge replacement helps maintain flow and filtration performance. Replacement timing depends on the cartridge, incoming water quality and household usage. Browse replacement filters and cartridges, and always match the cartridge dimensions and model to your installed housing.
Frequently Asked Questions
What is a whole-house water filter?
A whole-house filter is installed near the point where water enters the property, allowing treated water to be supplied to multiple taps, showers and appliances.
What size whole-house filter do I need?
The correct size depends on household demand, peak flow rate, pipework, water pressure and available installation space. Larger households generally need a system capable of maintaining adequate flow when several outlets are used together.
Can a whole-house filter reduce fluoride?
Selected systems and cartridge combinations are designed for fluoride reduction. Review the documented specifications for the exact system rather than assuming every whole-house filter has the same performance.
How often should whole-house filters be replaced?
Replacement intervals vary by cartridge type, water quality and usage. Follow the manufacturer’s schedule and monitor changes in pressure or flow between planned services.
Do your systems come with a warranty?
Yes. Our whole-house systems come with a 5-year warranty.
Need help comparing systems?
Call Alkaline World on 03 9357 1777 or contact our team with your water source, household requirements and any water test results, and we'll help you choose the right system.
AQUARIUS M25
The Aquarius M25 combines 10-stage filtration with natural mineral enhancement, molecular hydrogen and the distinctive Aquarius Quantum Vortex configuration.
Choose a bench-top or under-sink system with no electricity and no wastewater.
Designed in Melbourne for Australian homes.
