Aquarius Whole House Triple System Stainless Steel Cover 20" x 4.5"
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The Aquarius Whole House Triple System with a stainless steel cover offers comprehensive water filtration for your entire home.
This is a full 20" x 4.5" system, it effectively reduces impurities and contaminants through three stages of filtration, providing cleaner, healthier water from every tap.
Its durable stainless steel cover ensures long-lasting protection and reliability, supporting your home’s water quality with ease and peace of mind.
Australian Standard WaterMark Certified 20″ x 4.5″ Triple-Stage Whole House Water Filter System
Premium UV-Resistant 304 Stainless Steel Enclosed Design | Built for Australian Conditions
Upgrade your home’s water quality with this Australian Standard WaterMark Certified 3-Stage Whole House Water Filter System. Engineered for durability and long-term reliability, this unit features a UV-resistant 304 stainless steel enclosure designed to withstand Australia’s harsh outdoor climate—including heat, sun exposure, corrosion and tampering.
Perfect for homeowners who want premium protection, optimal performance, and a clean, professional look for their home exterior.
Why Choose 304 Stainless Steel?
304 stainless steel is widely recognised for its exceptional strength, rust resistance, and long-lasting performance.
Its unique alloy of steel, nickel and chromium forms a protective, ultra-thin chromium layer that prevents oxidisation—keeping your enclosure looking pristine year after year.
This ensures your filtration system remains protected from the elements, safeguarding your investment and maintaining top performance.
Triple-Stage 20″ x 4.5″ Big Blue Design
Built around full-sized 20″ x 4.5″ reinforced housings, this system delivers:
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High flow rates suitable for large homes and multi-bathroom properties
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Longer contact time for improved impurity reduction
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Flexible filter customisation to suit your water source and household needs
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Reinforced, UV-resistant housings designed to perform in Australian weather
Whether you’re filtering municipal or tank water, the triple-stage format gives you the versatility to configure sediment, carbon or specialty filters for the best results.
Built-In Pressure Gauges for Easy Maintenance
Each housing includes a high-quality pressure gauge, allowing you to monitor system performance at a glance.
Simply record the starting pressure during installation—when you notice a significant drop, it’s a clear indicator that the filters are nearing the end of their service life.
This makes maintenance simple, predictable and hassle-free.
Key Features
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Australian Standard WaterMark Certified
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Premium 304 Stainless Steel enclosure for durability and weather protection
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UV-resistant, heat-resistant, corrosion-resistant design
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Full-size 20″ x 4.5″ Big Blue housings for high flow performance
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Customisable 3-stage filtration layout
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Outdoor-ready enclosure for home exteriors
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Ideal for whole-house filtration, tank water, and municipal water
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Integrated pressure gauges for easy monitoring
Perfect For
✔ Homes wanting whole-house purified water
✔ Large families or multi-bathroom properties
✔ Tank, bore or municipal water supplies
✔ Customers seeking durability, performance and premium build quality
✔ Homes exposed to direct sun, heat or coastal environments
Packaging and delivery
1. Up to 98% Chlorine, Heavy Metals & Sediment reduction.
2. No electric required and no drainage water.
3. Large 20-inch filters allow for maximum water flow with minimal pressure loss.
1st Stage: BB 20" PP 5 micron filter cartridge, standard is Blue filter housing
2nd Stage:BB 20" CTO carbon block filter cartridge, standard is Blue filter housing
3rd Stage: BB 20" PP 1 micron filter cartridge, standard is Blue filter housing
Filter housing: 20" Big Blue filter housing
Operating pressure: 60 ~ 80 PSI
100% Factory tested ready for quick and reliable installation.
Each components have been passed 10,000 times strict cycle testing
under 125 PSI water pressure or burst testing.











