2 Stage 10″ Big Blue Whole House System (Frame) Rainwater

Key Features

  • Two-stage filtration combining sediment removal with a carbon silver bacteriostatic cartridge.
  • Helps reduce sediment, dirt and debris commonly found in rainwater supplies.
  • One installation point filters water supplied to every tap in the home.
  • Designed for rainwater.
  • High-flow design suitable for households of up to six people.
  • No power required.

 

$899.00

Rainwater tanks can collect leaves, dust, pollen, roof debris and other particulates that affect the appearance, taste and overall quality of your water. This system is designed to filter the water supplied throughout your home, providing filtered water at every tap.

How it Works

Water passes two filtration stages before entering your home’s plumbing.

Designed for smaller households, the high-flow design allows up to three taps to operate simultaneously without a noticeable loss of pressure.

For best performance, the connected pump should deliver between 20 psi (138 kPa) and 125 psi (862 kPa).

Two Stages of Filtration

Stage 1 – Sediment Filter 10 μm

Reduces dirt, dust, rust and other suspended particulates, helping protect the cartridges that follow. For most rainwater applications, we recommend replacing the sediment cartridge every 6–8 months, depending on water quality and household usage.

Stage 2 – Carbon Silver 0.5 μm Bacteriostatic

This activated carbon silver cartridge contains silver as a bacteriostatic agent to help inhibit bacterial growth within the filter media. It also assists in reducing VOCs, herbicides, pesticides and a range of organic compounds.

CAUTION: This cartridge helps inhibit microbial growth but does not remove bacteria or microorganisms. DO NOT USE with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Where the microbiological quality of the water is unknown, or where bacterial treatment is required, we recommend installing a suitably sized UV sterilisation system.

Every rainwater supply is different. The amount of sediment and organic matter entering your tank depends on factors such as your roof, gutters, surrounding vegetation and maintenance practices.

Installation

Installation by a licensed plumber is recommended.

We recommend installing a bypass valve, allowing the filtration system to be isolated during maintenance without interrupting the household water supply.

Installation is not included in the listed price.

If you’re located in Perth, we can arrange installation through one of our trusted licensed plumbing partners. Contact us for an installation-inclusive quotation.

The filter system can be installed either at the water tank after the pump or where the water enters your home, supplying filtered water throughout the house.

Maintenance

To maintain filtration performance, we generally recommend:

  • Sediment cartridge every 6 – 8 months
  • Carbon Silver cartridge every 10 – 12 months

Replacement frequency will vary depending on water quality and household usage.

Do I Need UV Sterilisation?

If your rainwater is collected from a roof and stored in a tank, filtration removes particulates and helps improve the taste and appearance of the water. However, filtration alone is not designed to disinfect water.

If there is any possibility the water may contain bacteria or other microorganisms, we recommend adding a suitably sized UV sterilisation system.

Manufacturer’s Warranty  

Unless otherwise stated, products supplied by WestOz Water Filters are covered by a 12-month manufacturer’s warranty against manufacturing defects.

This manufacturer’s warranty applies in addition to your rights under the Australian Consumer Law.

Australian Consumer Law

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. These guarantees apply in addition to any manufacturer’s warranty and may provide rights beyond the stated warranty period, depending on the nature of the product and the circumstances.

Installation Warranty

Where installation is carried out by one of our recommended installation plumbers, workmanship is covered by a separate five (5) year warranty provided by the installing plumber. Warranty claims relating to workmanship to be directed to the installing plumber.

Why choose WestOz Water Filters?

  • Family-owned Award Winning Western Australian business  Winner badge for the Belmont BEC Business Awards 2025
  • Helping more than 1,600 Western Australian households choose practical water filtration solutions
  • Personalised recommendations based on your water supply
  • Ongoing cartridge reminder service
  • Friendly local support after installation
  • Access to trusted licensed Perth plumbers
  • Advice before and after your purchase

Need help deciding?

Not sure if this is the right system for your home?

Every household is different. Before ordering, contact our team for personalised advice. We’ll help you determine whether this system is suitable for your home, rainwater supply and household requirements.

FREE SHIPPING to Australian addresses on orders over $55 (AUD)

Model 2 Stage Whole House System
Dimensions (W) 385mm x (H) 440mm x (D) 205mm
Cartridge Size 10" x 4.5
Water Filter Cartridges

Sediment + Carbon Silver

Micron Rating

10 μm Sediment + 0.5 μm Carbon Silver – rain water/town water

Minimum pressure: 20psi
Max pressure: 125psi

Water Type Tank, Town
Eliminates

Sand
Dirt
Rust
Unpleasant Taste
Odour
Chlorine + chloramine
Unpleasant taste & odour
Pesticides
PCB’s
Weedicides
Chlorine – resistant Cysts
Bacteriostatic

Alkalises

NO

Cartridge Replacement Period Carbon / Carbon Silver 10 – 12 months, Sediment 4 months town; 6 – 8 months rain
Certifications NSF, WQA, Australian Standard, WaterMark
  • 2 x Big Blue Housings UV Protected
  • 1 x White Powder Coated Bracket
  • 2 x Stainless Steel Pressure Gauges
  • 1 x Stage 1 filter – Sediment
  • 1 x Stage 2 filter – Carbon Silver Bacteriostatic
  • 1 x Assembled mounting stand
  • 1 x Spanner Wrench
  • 1 x Instruction manual
Description

Rainwater tanks can collect leaves, dust, pollen, roof debris and other particulates that affect the appearance, taste and overall quality of your water. This system is designed to filter the water supplied throughout your home, providing filtered water at every tap.

How it Works

Water passes two filtration stages before entering your home’s plumbing.

Designed for smaller households, the high-flow design allows up to three taps to operate simultaneously without a noticeable loss of pressure.

For best performance, the connected pump should deliver between 20 psi (138 kPa) and 125 psi (862 kPa).

Two Stages of Filtration

Stage 1 – Sediment Filter 10 μm

Reduces dirt, dust, rust and other suspended particulates, helping protect the cartridges that follow. For most rainwater applications, we recommend replacing the sediment cartridge every 6–8 months, depending on water quality and household usage.

Stage 2 – Carbon Silver 0.5 μm Bacteriostatic

This activated carbon silver cartridge contains silver as a bacteriostatic agent to help inhibit bacterial growth within the filter media. It also assists in reducing VOCs, herbicides, pesticides and a range of organic compounds.

CAUTION: This cartridge helps inhibit microbial growth but does not remove bacteria or microorganisms. DO NOT USE with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Where the microbiological quality of the water is unknown, or where bacterial treatment is required, we recommend installing a suitably sized UV sterilisation system.

Every rainwater supply is different. The amount of sediment and organic matter entering your tank depends on factors such as your roof, gutters, surrounding vegetation and maintenance practices.

Installation

Installation by a licensed plumber is recommended.

We recommend installing a bypass valve, allowing the filtration system to be isolated during maintenance without interrupting the household water supply.

Installation is not included in the listed price.

If you’re located in Perth, we can arrange installation through one of our trusted licensed plumbing partners. Contact us for an installation-inclusive quotation.

The filter system can be installed either at the water tank after the pump or where the water enters your home, supplying filtered water throughout the house.

Maintenance

To maintain filtration performance, we generally recommend:

  • Sediment cartridge every 6 – 8 months
  • Carbon Silver cartridge every 10 – 12 months

Replacement frequency will vary depending on water quality and household usage.

Do I Need UV Sterilisation?

If your rainwater is collected from a roof and stored in a tank, filtration removes particulates and helps improve the taste and appearance of the water. However, filtration alone is not designed to disinfect water.

If there is any possibility the water may contain bacteria or other microorganisms, we recommend adding a suitably sized UV sterilisation system.

Manufacturer’s Warranty  

Unless otherwise stated, products supplied by WestOz Water Filters are covered by a 12-month manufacturer’s warranty against manufacturing defects.

This manufacturer’s warranty applies in addition to your rights under the Australian Consumer Law.

Australian Consumer Law

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. These guarantees apply in addition to any manufacturer’s warranty and may provide rights beyond the stated warranty period, depending on the nature of the product and the circumstances.

Installation Warranty

Where installation is carried out by one of our recommended installation plumbers, workmanship is covered by a separate five (5) year warranty provided by the installing plumber. Warranty claims relating to workmanship to be directed to the installing plumber.

Why choose WestOz Water Filters?

  • Family-owned Award Winning Western Australian business  Winner badge for the Belmont BEC Business Awards 2025
  • Helping more than 1,600 Western Australian households choose practical water filtration solutions
  • Personalised recommendations based on your water supply
  • Ongoing cartridge reminder service
  • Friendly local support after installation
  • Access to trusted licensed Perth plumbers
  • Advice before and after your purchase

Need help deciding?

Not sure if this is the right system for your home?

Every household is different. Before ordering, contact our team for personalised advice. We’ll help you determine whether this system is suitable for your home, rainwater supply and household requirements.

FREE SHIPPING to Australian addresses on orders over $55 (AUD)

Specifications
Model 2 Stage Whole House System
Dimensions (W) 385mm x (H) 440mm x (D) 205mm
Cartridge Size 10" x 4.5
Water Filter Cartridges

Sediment + Carbon Silver

Micron Rating

10 μm Sediment + 0.5 μm Carbon Silver – rain water/town water

Minimum pressure: 20psi
Max pressure: 125psi

Water Type Tank, Town
Eliminates

Sand
Dirt
Rust
Unpleasant Taste
Odour
Chlorine + chloramine
Unpleasant taste & odour
Pesticides
PCB’s
Weedicides
Chlorine – resistant Cysts
Bacteriostatic

Alkalises

NO

Cartridge Replacement Period Carbon / Carbon Silver 10 – 12 months, Sediment 4 months town; 6 – 8 months rain
Certifications NSF, WQA, Australian Standard, WaterMark
What's Included
  • 2 x Big Blue Housings UV Protected
  • 1 x White Powder Coated Bracket
  • 2 x Stainless Steel Pressure Gauges
  • 1 x Stage 1 filter – Sediment
  • 1 x Stage 2 filter – Carbon Silver Bacteriostatic
  • 1 x Assembled mounting stand
  • 1 x Spanner Wrench
  • 1 x Instruction manual

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