Premium Three-Stage Whole House Water Filters – PFAS & Chloramine Reduction (20” x 4.5”) Replacement Filters for Pure₂O Whole House Water Filtration Systems.jpg
Pure₂O Stage 1 sediment filter – 20” x 4.5” 1-micron antibacterial nano-silver cartridge for whole-house water filtration systems in Perth. Removes sediment, rust and dirt
Pure₂O Stage 2 coconut carbon block filter – 20” x 4.5” 0.5-micron cartridge that removes chlorine, chloramine and PFAS in a whole-house water filtration system
Pure₂O Stage 3 Hydrotech carbon block filter – 20” x 4.5” 0.22-micron finishing filter designed to improve water quality, reduce limescale buildup in whole-house filtration systems
Premium Three-Stage Whole House Water Filters – PFAS & Chloramine Reduction (20” x 4.5”) Replacement Filters for Pure₂O Whole House Water Filtration Systems.jpg
Pure₂O Stage 1 sediment filter – 20” x 4.5” 1-micron antibacterial nano-silver cartridge for whole-house water filtration systems in Perth. Removes sediment, rust and dirt
Pure₂O Stage 2 coconut carbon block filter – 20” x 4.5” 0.5-micron cartridge that removes chlorine, chloramine and PFAS in a whole-house water filtration system
Pure₂O Stage 3 Hydrotech carbon block filter – 20” x 4.5” 0.22-micron finishing filter designed to improve water quality, reduce limescale buildup in whole-house filtration systems

Premium Three-Stage PFAS Whole House Filter Set | 20” × 4.5”

$349.00 $437.00

Premium Three-Stage Whole House Water Filters – PFAS & Chloramine Reduction | 20” × 4.5”


Upgrade your whole-home water filtration with the Premium Three-Stage Whole House Water Filter Set, designed to deliver comprehensive protection against sediment, chlorine, chloramine, and PFAS while improving taste, clarity, and overall water quality at every tap.

This three-stage replacement set combines progressive filtration, advanced catalytic carbon, and ultra-fine final polishing to provide a complete, balanced filtration system suitable for Australian town water supplies.

Each filter is a standard 20” × 4.5” size, compatible with most whole house filtration housings.

What’s Included (Three-Stage Filtration)

Stage 1 – 1 Micron Antibacterial Sediment Filter (Nano Silver)
Captures fine sediment, rust, dirt, and particulate matter while helping inhibit bacterial growth within the cartridge. Protects downstream filters and extends system lifespan.

Stage 2 – 0.5 Micron Catalytic Carbon Block (PFAS & Chloramine Reduction)
Advanced catalytic coconut carbon designed to reduce chlorine, chloramine, PFAS, VOCs, herbicides, pesticides, and chemical by-products commonly found in municipal water supplies.

Stage 3 – 0.22 Micron Hydrotech Final Polishing Filter
Ultra-fine depth filtration that removes remaining micro-particles, turbidity, and fine sediment, delivering clean, clear, high-quality water throughout the home.

Key Benefits

  • Three-Stage Whole House Filtration – Progressive filtration for optimal performance and longevity

  • PFAS & Chloramine Reduction – Premium catalytic carbon technology where it matters

  • Improved Taste & Odour – Removes chlorine, chemical by-products, and organic compounds

  • Whole-Home Coverage – Filtered water to every tap, shower, and appliance

  • Standard 20” × 4.5” Size – Compatible with most whole house filter housings

  • Food-Grade, BPA-Free Materials – Safe for drinking, cooking, and bathing

  • Protects Plumbing & Appliances – Reduces scale, sediment, and chemical exposure

Who This System Is For

This premium three-stage set is ideal for households on town water looking for enhanced chemical reduction, including PFAS and chloramine, without sacrificing flow rate or system reliability. It is particularly well-suited to families concerned about emerging contaminants and long-term water quality.

Replacement & Maintenance

Filter lifespan varies depending on water quality and usage.
Typical replacement interval is up to 12 months for each stage, or sooner in areas with high sediment or chemical load.

Regular replacement ensures continued filtration performance and water safety.

Premium Three-Stage Whole House Water Filters – PFAS & Chloramine Reduction | 20” × 4.5”


Upgrade your whole-home water filtration with the Premium Three-Stage Whole House Water Filter Set, designed to deliver comprehensive protection against sediment, chlorine, chloramine, and PFAS while improving taste, clarity, and overall water quality at every tap.

This three-stage replacement set combines progressive filtration, advanced catalytic carbon, and ultra-fine final polishing to provide a complete, balanced filtration system suitable for Australian town water supplies.

Each filter is a standard 20” × 4.5” size, compatible with most whole house filtration housings.

What’s Included (Three-Stage Filtration)

Stage 1 – 1 Micron Antibacterial Sediment Filter (Nano Silver)
Captures fine sediment, rust, dirt, and particulate matter while helping inhibit bacterial growth within the cartridge. Protects downstream filters and extends system lifespan.

Stage 2 – 0.5 Micron Catalytic Carbon Block (PFAS & Chloramine Reduction)
Advanced catalytic coconut carbon designed to reduce chlorine, chloramine, PFAS, VOCs, herbicides, pesticides, and chemical by-products commonly found in municipal water supplies.

Stage 3 – 0.22 Micron Hydrotech Final Polishing Filter
Ultra-fine depth filtration that removes remaining micro-particles, turbidity, and fine sediment, delivering clean, clear, high-quality water throughout the home.

Key Benefits

  • Three-Stage Whole House Filtration – Progressive filtration for optimal performance and longevity

  • PFAS & Chloramine Reduction – Premium catalytic carbon technology where it matters

  • Improved Taste & Odour – Removes chlorine, chemical by-products, and organic compounds

  • Whole-Home Coverage – Filtered water to every tap, shower, and appliance

  • Standard 20” × 4.5” Size – Compatible with most whole house filter housings

  • Food-Grade, BPA-Free Materials – Safe for drinking, cooking, and bathing

  • Protects Plumbing & Appliances – Reduces scale, sediment, and chemical exposure

Who This System Is For

This premium three-stage set is ideal for households on town water looking for enhanced chemical reduction, including PFAS and chloramine, without sacrificing flow rate or system reliability. It is particularly well-suited to families concerned about emerging contaminants and long-term water quality.

Replacement & Maintenance

Filter lifespan varies depending on water quality and usage.
Typical replacement interval is up to 12 months for each stage, or sooner in areas with high sediment or chemical load.

Regular replacement ensures continued filtration performance and water safety.

Specifications

  • System Type: Three-Stage Whole House Water Filtration

  • Filter Sizes: 20” x 4.5” (Big Blue standard)

  • Stage 1: 1 Micron Antibacterial Polyspun Sediment Filter (Nano Silver)

  • Stage 2: 0.5 Micron Catalytic Carbon Block (PFAS & Chloramine Reduction)

  • Stage 3: 0.22 Micron Hydrotech Carbon Block (Final Polishing)

  • Application: Town water / municipal supply

  • Materials: Food-grade, BPA-free components

  • Compatible Housings: Standard 20” x 4.5” whole house filter housings

Where This Filter Set Sits in the System

This premium three-stage set is designed as a complete whole-house filtration solution, providing progressive treatment across multiple filtration stages.

  • Stage 1 removes sediment and particulate matter to protect downstream filters

  • Stage 2 targets chlorine, chloramine, PFAS, VOCs, and chemical contaminants

  • Stage 3 provides ultra-fine polishing to improve clarity and overall water quality

Together, the system delivers balanced filtration performance without compromising household flow rates.

What This System Removes

This three-stage filtration set is designed to reduce:

  • Sediment, rust, dirt, and particulate matter

  • Chlorine and chemical tastes and odours

  • Chloramine and associated by-products

  • PFAS and other persistent organic compounds

  • Volatile Organic Compounds (VOCs)

  • Fine particulates down to 0.22 micron

Each stage is engineered to handle a specific role, ensuring efficient contaminant reduction and extended filter life.

  • This pack includes three 20” × 4.5” cartridges designed to work together as a progressive system:

    1. 1 micron antibacterial sediment filter (nano silver) for rust, dirt and particulate protection

    2. 0.5 micron catalytic carbon block designed for PFAS + chloramine reduction plus chlorine, VOCs and chemical tastes

    3. 0.22 micron Hydrotech polishing filter for final-stage clarity and fine particulate removal
      Together, they restore your full premium system performance in one changeover.

  • Most households replace the full set every 6–12 months, depending on water quality and usage. Replace sooner if you notice any of the following:

    • Water pressure gradually dropping across the home

    • Chlorine/chemical taste or odour returning

    • Filters discolouring quickly (high sediment load)
      If your supply has higher sediment or stronger disinfectant levels, replacement intervals can shorten.

  • When installed in a correctly sized 20” × 4.5” whole-house housing and replaced on time, pressure drop is typically minimal and unnoticeable. The most common cause of reduced pressure is Stage 1 loading up with sediment — which is doing its job. If pressure drops noticeably, it’s usually a sign the filters are due for replacement rather than the system being “too restrictive”.

  • This set suits standard 20” × 4.5” Big Blue-style housings only. If you’re unsure, measure the cartridge currently installed — these are the large format “whole house” cartridges, not the smaller 10” slimline type. Some filtration systems also use a proprietary 15” filter. If you send us a photo of your housing or existing filter label, we can confirm compatibility before you order.

  • Yes. This premium pack is designed specifically for mains/town water supplies, where disinfectants (chlorine/chloramine), chemical by-products, and emerging contaminants (including PFAS) are the main concerns. It’s the “upgrade” option for customers who want broader chemical reduction beyond standard chlorine taste & odour filtration.

When to Replace

Replacement intervals depend on incoming water quality and household usage.

General guidance:

  • Replace all stages approximately every 6–12 months

  • Replace sooner if you notice:

    • Reduced water flow

    • Return of chlorine or chemical taste

    • Visible sediment or discolouration

Regular replacement ensures optimal filtration performance and protects plumbing fixtures and appliances.

Compatibility Note

This filter set is designed for standard 20” x 4.5” (Big Blue) whole house filter housings only.

  • ❌ Not compatible with slimline 10” systems or smaller 15” proprietary sized systems.

  • ❌ Not suitable for undersink or benchtop filters

Please confirm housing size before purchase.