Twin 20″ Whole House System Tank Rainwater

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Twin 20″ Whole House System Tank Rainwater



2 Stage 20″ Whole House System is the perfect way to protect your family against chemicals contaminated in drinking water. Ensure your family has clean, safe and healthy water when it comes to drinking, showering and bathing.

  • Sediment and carbon silver filtration
  • High flow system – no power required
  • Suitable for up to 9 members
  • High efficiency grade filters
  • Ideal for tank rainwater
  • Easy installation by plumber or handyman
SKU: 20BB-SS-1 Categories: ,


This is a reliable, effective and convenient twin water filtration system for the whole house! Attach one of these systems to your main tank rainwater supply to enjoy fresh, safe, purified water from every outlet throughout your home. Your drinking, washing and showering water will be significantly improved when you invest in this budget-friendly filtration system.

The Big Blue whole house filtration system, with the Bacteriostatic Carbon Silver cartridge, is used by families of up to 9 people across Australia to improve their water supply in the following ways:

  • Renders bacteria & cysts inert
  • Removes bad tastes & odour
  • Removes chemicals, some heavy metals and sediment
  • Prolongs life expectancy of appliances
  • Easily access great tasting, healthy water

Of the water filters for house and home available on the Australian market, this product stands head and shoulders above the rest. The twin drinking water filters in this system work to remove basic particles like rust, sand and silt and airborne chemicals from your water supply, in addition to the bacteria/cyst prevention factor.

It also offers low pressure and flow drop capabilities to help in ensuring there is no affect to the flow of water when multiple taps are used simultaneously throughout the day.
The drinking water filters included in this system are perfect for tank rainwater and are easy to replace when the time comes.

Tank/Rain Water – Includes Sediment + 0.5 Bacteriostatic Silver Carbon Filter

Effectively reduces and removes:

  • Heavy metals
  • Bacteria/cysts
  • Bad taste
  • Bad odours

*Initial installation is recommended by a certified plumber.

We provide FREE SHIPPING to WA addresses on orders over $55 (AUD). All WestOz Filtration products come with a 12-month warranty so you don’t just get water filters, you get peace of mind as well. That’s the WestOz guarantee!

*All pictures shown are for illustration purposes only, actual product may vary due to product enhancement.

Does not remove calcium/scale – not appropriate if you are in an area where this is a concern.


MODEL 2 Stage Whole House System
MICRON RATING 10 Micron Sediment + 0.5 Micron Bacteriostatic Carbon Silver
WATER TYPE Tank Rainwater
ELIMINATES Sand, Dust, Dirt, Rust, Chlorine, Taste, Odour, Smell. Renders bacteria & cysts inert.
CARTRIDGE REPLACEMENT PERIOD Sediment Filter – 6 – 8 months
Carbon Silver Filter – 10 – 12 months


  • 2 x Big Blue Housings UV Protected
  • 1 x White Powered Coated Bracket
  • 2 x Stainless Steel Pressure Gauges
  • 1 x Stage 1 filter – sediment
  • 1 x Stage 2 filter – carbon silver
  • 1 x Assembled mounting stand
  • 1 x Spanner Wrench
  • 1 x Instruction manual
    *All pictures shown are for illustration purposes only, actual product may vary due to product enhancement.