0.22 Micron Hydrotech Water Filter Cartridge (20” x 4.5”) for Pure₂O Whole House Water Filtration Systems
Woman holding a 0.22 Micron Hydrotech Water Filter Cartridge (20” x 4.5”) for Pure₂O Whole House Water Filtration Systems
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.
0.22 Micron Hydrotech Water Filter Cartridge (20” x 4.5”) for Pure₂O Whole House Water Filtration Systems
Woman holding a 0.22 Micron Hydrotech Water Filter Cartridge (20” x 4.5”) for Pure₂O Whole House Water Filtration Systems
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.

0.22 Micron Hydrotech Water Filter Cartridge | 20” x 4.5” Whole House

$209.00

0.22 Micron Hydrotech Water Filter Cartridge | 20” x 4.5” Universal Replacement for Whole House Filter

Enhance final water quality with the 0.22 Micron Hydrotech Water Filter Cartridge, designed as a high-performance polishing filter for whole house water filtration systems. This ultra-fine depth filtration cartridge effectively captures extremely fine particulate matter, improving clarity while protecting downstream plumbing and appliances.

Engineered for consistent performance, the Hydrotech media provides precise particulate reduction without significantly restricting flow, making it ideal as a final-stage filter in premium whole house filtration setups.

Key Features:

  • 0.22 Micron Filtration – Captures ultra-fine sediment, rust, silt, and particulate matter.

  • Hydrotech Depth Media – Provides uniform filtration and long service life.

  • Improves Water Clarity – Delivers visibly cleaner, clearer water at every tap.

  • Universal Fit – Standard 20” x 4.5” size compatible with most whole house filter housings.

  • Food-Grade Construction – BPA-free materials suitable for household water use.

  • System Protection – Helps safeguard taps, fixtures, and appliances from fine particulate buildup.

Why Choose the Hydrotech 0.22 Micron Filter?

This cartridge is ideal for households seeking maximum particulate refinement after primary carbon and chemical filtration stages. By removing ultra-fine particles missed by coarser filters, it delivers a final polish that enhances water clarity and overall system performance.

Suitable for residential and light commercial applications, this filter fits standard 20” x 4.5” whole house systems and should be replaced as required based on water quality and usage.

0.22 Micron Hydrotech Water Filter Cartridge | 20” x 4.5” Universal Replacement for Whole House Filter

Enhance final water quality with the 0.22 Micron Hydrotech Water Filter Cartridge, designed as a high-performance polishing filter for whole house water filtration systems. This ultra-fine depth filtration cartridge effectively captures extremely fine particulate matter, improving clarity while protecting downstream plumbing and appliances.

Engineered for consistent performance, the Hydrotech media provides precise particulate reduction without significantly restricting flow, making it ideal as a final-stage filter in premium whole house filtration setups.

Key Features:

  • 0.22 Micron Filtration – Captures ultra-fine sediment, rust, silt, and particulate matter.

  • Hydrotech Depth Media – Provides uniform filtration and long service life.

  • Improves Water Clarity – Delivers visibly cleaner, clearer water at every tap.

  • Universal Fit – Standard 20” x 4.5” size compatible with most whole house filter housings.

  • Food-Grade Construction – BPA-free materials suitable for household water use.

  • System Protection – Helps safeguard taps, fixtures, and appliances from fine particulate buildup.

Why Choose the Hydrotech 0.22 Micron Filter?

This cartridge is ideal for households seeking maximum particulate refinement after primary carbon and chemical filtration stages. By removing ultra-fine particles missed by coarser filters, it delivers a final polish that enhances water clarity and overall system performance.

Suitable for residential and light commercial applications, this filter fits standard 20” x 4.5” whole house systems and should be replaced as required based on water quality and usage.

Specifications

  • Filter Type: High Flow Multi-Function Carbon Block (Hydrotech HFMF Series)

  • Micron Rating: 0.22 Micron (nominal)

  • Size: 20” x 4.5” (Big Blue standard)

  • Max Flow Rate: Up to 75 litres per minute

  • Chlorine Capacity: Up to 400,000 litres

  • Carbon Media: Multi-layer carbon block with scale control & heavy metal reduction media

  • Operating Pressure: Test water pressure prior to installation (pressure limiting valve recommended where required)

  • Operating Temperature: 4°C - 38°C

  • Material: Food-grade, BPA-free components

  • Compatible Housings: Standard 20” x 4.5” Big Blue housings

Where This Filter Sits in the System

  • Final polishing stage in a whole-house filtration system

  • Designed to treat chlorine, taste, odour, cysts, heavy metals, scale and fine particulates

  • High-flow design allows full-house coverage without choking pressure

  • Commonly used downstream of sediment and catalytic carbon stages

This is a finishing filter, focused on water quality, scale control, and appliance protection.

  • A 0.22 micron rating allows this filter to reduce very fine particulates including cysts, sediment, chlorine, heavy metals, scale, taste and odour contaminants. It provides a final polish to already pre-filtered water.

  • No. Despite the fine micron rating, this cartridge is engineered for high-flow applications, supporting flow rates up to 75 L/min when installed in a correctly sized Big Blue housing.

  • Yes. This cartridge is specifically designed for whole-house systems, including mains water and tank water supplies, where high flow and large capacity are required.

  • This filter is not designed as a dedicated PFAS removal cartridge. For targeted PFAS and chloramine reduction, use the premium catalytic carbon PFAS filter earlier in the system.

  • Yes. Hydrotech HFMF cartridges are suitable for both mains and rainwater tank supplies, provided the water is microbiologically safe or adequately disinfected.

When to Replace

  • Replace based on capacity or performance, whichever comes first

  • Typical service life: up to 12 months

  • Replace sooner if you notice:

    • Reduced flow rate

    • Return of taste or odour

    • Increased scale build-up

Compatibility Note

This cartridge suits all Pure₂O Whole-House Water Filtration Systems and all other standard 20” x 4.5” systems with Big Blue housings only.