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Product Information Quick Specs & Benefits View filtration, certification, contaminant reduction and warranty details
Filtration Type Whole Home
Reduces Dirt, Sand, Silt, Rust, Sediment, Microplastics, Chlorine, Chloramine (partial reduction), Volatile Organic Compounds (VOCs), Pesticides, and Herbicides
Warranty Limited 2 Year
WFW Triple 20" AntiScale Enclosed Water Filter System
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WFW WHOLE-HOUSE FILTRATION + SCALE CONTROL

WFW Triple 20" Big Blue with AntiScale Whole Home Water Filter System

The WFW Triple 20" Big Blue with AntiScale Whole Home Water Filter System combines three large-format 20-inch filtration stages to provide whole-house sediment filtration, carbon treatment and a dedicated scale-control stage.

Designed as a point-of-entry system, the Triple 20 treats the incoming water supply before it is distributed through applicable household plumbing. The three-stage arrangement allows separate cartridges to be selected for particulate filtration, chlorine and unwanted taste or odour treatment, and management of mineral scale formation.

Unlike a system fitted with ultraviolet treatment, the standard Triple 20 AntiScale cartridge configuration does not require electrical power to operate. It also does not use the salt-regeneration cycle associated with a conventional ion-exchange water softener.

Quick answer: this is a three-stage 20-inch Big Blue whole-house filtration system with a dedicated AntiScale stage. It combines sediment filtration, carbon treatment and scale control without adding a UV system. The scale-control cartridge should not be confused with a conventional water softener: it is intended to help manage scale formation rather than remove calcium and magnesium from the water through salt-based ion exchange.
SYSTEM AT A GLANCE

WFW Triple 20 AntiScale Key Details

3 Stages 20-Inch Filtration
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Sediment Particulate Treatment
AntiScale Scale-Control Stage
Carbon Chlorine, Taste & Odour
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THREE-STAGE FILTRATION

Separate Cartridges for Separate Treatment Jobs

The Triple 20 configuration provides three large cartridge positions so the system does not rely on one filter media for every water-treatment requirement.

Sediment Filtration

A dedicated sediment stage reduces suspended dirt, rust, sand, silt and similar particulate material.

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Scale Control

A dedicated AntiScale cartridge is used to help manage mineral scale formation within compatible plumbing and appliance applications.

Carbon Treatment

A carbon cartridge provides treatment for chlorine and unwanted taste or odour where the supplied cartridge is specified for those functions.

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Follow the cartridge sequence supplied for the exact system configuration. Replacement media should be matched to the installed cartridge models rather than selected by physical size alone.

NO UV STAGE

Whole-House Filtration Without an Ultraviolet System

This Triple 20 AntiScale configuration is designed around three cartridge-treatment stages and does not include the separate UV equipment used in the Triple 20 AntiScale + UV version.

That makes it suitable where the required treatment functions are sediment reduction, carbon treatment and scale control without an ultraviolet stage.

Where the incoming water source requires microbiological treatment, an appropriately sized UV or other disinfection stage may still be required separately.

SEDIMENT STAGE

Reduce Suspended Dirt, Rust, Sand & Silt

The sediment stage provides physical filtration of suspended particulate matter before water reaches the downstream treatment cartridges.

Dirt

Captures suspended dirt carried through the incoming water supply.

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Rust

Helps reduce particulate rust before it reaches downstream plumbing and filtration media.

Sand

Provides mechanical filtration for suspended sand and similar particles.

Silt

Reduces suspended silt within the operating range of the cartridge supplied.

Pre-Filtration

Removing particulate material first reduces unnecessary sediment loading on downstream treatment stages.

Replaceable Media

The sediment cartridge is a consumable component and requires inspection and replacement during normal maintenance.

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SCALE CONTROL

Dedicated AntiScale Treatment

The Triple 20 system includes a dedicated cartridge intended to help reduce the tendency of hardness minerals to form hard scale deposits on compatible surfaces.

This can be relevant to household equipment exposed to heated or evaporating water, including hot water equipment, dishwashers and other plumbing fixtures.

AntiScale treatment is not the same as conventional water softening. A scale-control cartridge can help manage how hardness minerals behave without necessarily reducing the measured concentration of calcium and magnesium in the incoming water.
NO SALT REGENERATION

Different From a Traditional Salt-Based Softener

The cartridge-based AntiScale stage does not use the conventional brine tank and regeneration process associated with an ion-exchange water softener.

AntiScale Cartridge

Designed to help manage scale formation while operating as part of the cartridge filtration system.

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Traditional Softener

Uses ion-exchange resin to remove hardness ions and typically requires salt and periodic regeneration.

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Customers specifically seeking measurable hardness reduction should confirm whether scale control or conventional softening is the treatment method required for their water conditions.

CARBON STAGE

Chlorine, Unwanted Taste & Odour Treatment

The Triple 20 configuration includes a carbon filtration stage for water-treatment functions associated with activated carbon.

Chlorine

A suitable carbon cartridge can provide chlorine reduction within its rated operating capacity.

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Unwanted Taste

Carbon treatment can reduce unwanted taste associated with suitable incoming water supplies.

Odour

Activated carbon can also provide unwanted odour reduction within the specification of the cartridge supplied.

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Specific contaminant claims depend on the exact carbon cartridge. Do not assume universal treatment of heavy metals, pesticides, VOCs, pharmaceuticals, chloramine or other substances unless the supplied cartridge is specifically rated for them.
BIG BLUE FORMAT

Three Large 20-Inch Cartridge Housings

Water Filter World manufactures and supplies whole-house filtration systems using large-format Big Blue-style housings for higher-volume point-of-entry filtration.

The Triple 20 format provides three full-size cartridge positions rather than the two used by a Twin 20 system.

This additional stage allows scale-control media to be incorporated without giving up the separate sediment and carbon treatment stages.

WHO IS IT FOR?

When a Triple 20 AntiScale System May Be Suitable

  • You want filtration at the main water entry point
  • You require sediment pre-filtration
  • You want a dedicated carbon treatment stage
  • You have concerns about mineral scale formation
  • You prefer cartridge-based scale control rather than salt regeneration
  • You do not require UV as part of this particular package
  • You have room for three large 20-inch housings
  • You can provide suitable access for future cartridge servicing
IS IT RIGHT FOR ME?

Check the Treatment Requirement Before Ordering

A Good Fit When

You want whole-house sediment, carbon and scale-control treatment from one three-housing system.

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Consider UV When

Your incoming source requires a dedicated microbiological treatment stage after filtration.

Check Water Chemistry When

You have significant iron, manganese, salinity, unusual hardness or other source-water issues that may require specialist treatment.

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WATER SOURCE

Match the System to Your Incoming Water

Mains Water

Sediment, carbon and scale-control treatment can suit mains-water applications where these are the identified treatment priorities.

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Rainwater

Rainwater may require sediment filtration, but microbiological treatment requirements should also be considered before choosing a non-UV configuration.

Bore Water

Bore water can contain dissolved minerals and other water-quality issues that require testing and treatment beyond a standard Triple 20 cartridge package.

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NO ELECTRICITY FOR THE FILTER ASSEMBLY

Passive Cartridge Filtration

The standard Triple 20 AntiScale filtration assembly does not contain an active UV lamp or other powered treatment stage.

Water is treated as it passes through the three cartridges under normal line or pump pressure, so the filtration assembly itself does not require electrical power.

This does not mean every installation is electricity-free. A property using a rainwater pump, bore pump, pressure system or other powered equipment can still require electricity elsewhere in the water-supply system.
NO AUTOMATIC BACKWASH

Cartridge System Rather Than a Regenerating Treatment Tank

The Triple 20 Big Blue format uses replaceable cartridges rather than an automatic media vessel that periodically backwashes or regenerates.

This means routine maintenance is based around inspecting and replacing the cartridges and housing seals rather than operating a programmed salt or backwash cycle.

Used filter cartridges still need to be replaced, so the system should not be described as maintenance-free.

SPECIFICATIONS

WFW Triple 20 AntiScale System Details

Specification System Detail
Brand WFW / Water Filter World
Product Type Whole-house cartridge filtration and scale-control system
Configuration Triple 20-inch Big Blue
Filtration Stages Three replaceable cartridge stages
Sediment Treatment Included
Scale Control Dedicated AntiScale cartridge stage
Carbon Treatment Included
UV Treatment Not included in this configuration
Electrical Requirement No electrical supply required for the passive filtration assembly
Salt Regeneration Not used by the cartridge-based AntiScale stage
System Flow Confirm against the exact cartridges, housings and installation configuration supplied
Operating Pressure Confirm against the exact housings and installation hardware supplied
Connection Size Confirm against the supplied Triple 20 assembly
FLOW & PRESSURE

Whole-House Performance Depends on the Complete Configuration

The size of a Big Blue housing does not by itself determine the final flow capacity of the installed system.

Available flow is influenced by all three cartridges, incoming pressure, plumbing diameter, fittings and the level of restriction that develops as the cartridges collect material.

Confirm flow before installation. The scale-control and carbon stages must be able to operate within their specified flow range while still supporting the property's normal simultaneous water demand.
INSTALLATION REQUIREMENTS

Plan for Three Full-Size Filter Housings

  • Suitable installation position on the incoming water line
  • Space for three large 20-inch Big Blue housings
  • Clearance beneath each housing for cartridge removal
  • Accessible upstream water isolation
  • Pipework sized for the required household flow
  • Secure support for the filtration assembly
  • Suitable access for future cartridge replacement
  • Pressure-control equipment where required by the plumbing installation
MAINTENANCE

The Triple 20 AntiScale System Is Serviceable, Not Maintenance-Free

All three treatment cartridges are consumable components. Their practical service life depends on the exact media supplied, water chemistry, sediment loading and total household water use.

Sediment Cartridge

Inspect and replace according to sediment loading, pressure drop and the cartridge manufacturer's service guidance.

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AntiScale Cartridge

Replace according to the service capacity and water-quality limits specified for the actual scale-control cartridge supplied.

Carbon Cartridge

Replace according to treatment demand, water consumption and the rated capacity of the exact carbon cartridge.

Housing O-Rings

Inspect the housing seals whenever the bowls are opened for cartridge maintenance.

Housing Condition

Check bowls, heads, brackets and connections for visible damage or leaks during routine servicing.

System Flow

A noticeable reduction in household flow can indicate increasing cartridge restriction.

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WHEN TO SERVICE

What Can Bring Cartridge Replacement Forward?

  • Water flow has noticeably reduced
  • The sediment stage is heavily loaded
  • Chlorine taste or unwanted odour begins to return
  • The AntiScale cartridge reaches its rated service life or capacity
  • Incoming water conditions change
  • Housing pressure drop increases
  • An O-ring or housing begins leaking
  • The previous service date or cartridge history is unknown
CARTRIDGE REPLACEMENT

What Is Involved in Routine Servicing?

  • Confirm the installed cartridge models and correct stage sequence
  • Turn off the incoming water supply
  • Relieve pressure from the filtration system
  • Open each Big Blue housing
  • Remove the used cartridges
  • Clean and rinse filter bowls as appropriate
  • Inspect housing O-rings and sealing surfaces
  • Replace damaged seals where required
  • Install each new cartridge in its specified stage
  • Ensure cartridges are correctly seated
  • Reassemble housings without overtightening
  • Restore water pressure gradually
  • Purge trapped air from the plumbing
  • Check all housings and connections for leaks
BEFORE ORDERING

Check These Details First

  • You require a three-stage 20-inch Big Blue system
  • You want sediment filtration
  • You want carbon treatment
  • You want cartridge-based scale control
  • You understand AntiScale treatment is not conventional softening
  • You do not require UV as part of this particular system
  • Your water conditions are suitable for the scale-control media
  • You have sufficient installation and service clearance
ORDERING OPTIONS

Choose How You Want to Order

Supply Only

Order the WFW Triple 20" Big Blue with AntiScale for delivery to supported Australian locations where you already have a suitable installer.

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Confirm Your Configuration

Check the exact sediment, AntiScale and carbon cartridges supplied so future maintenance can use the correct replacement media.

Supply & Installation

Professional installation may be available in eligible Brisbane and Gold Coast service areas, subject to site access and installation requirements.

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COMMON QUESTIONS

Questions About the WFW Triple 20 AntiScale System

What Does Triple 20 Mean?

It refers to a system using three large-format 20-inch filtration housings.

Is It a Whole-House System?

Yes. It is designed for point-of-entry treatment before water is distributed through applicable household plumbing.

What Treatment Stages Are Included?

The system combines sediment filtration, a dedicated AntiScale stage and carbon treatment.

Does It Include UV?

No. This configuration does not include an ultraviolet treatment stage.

Does It Need Electricity?

The passive cartridge filtration assembly itself does not require electrical power.

Does It Need Salt?

The AntiScale cartridge does not use the conventional salt-regeneration process associated with an ion-exchange softener.

Is It a Water Softener?

No. Scale-control treatment is different from conventional hardness removal. It is intended to help manage scale formation rather than exchange calcium and magnesium out of the water.

Does It Reduce Sediment?

Yes. A dedicated sediment filtration stage forms part of the system.

Does It Reduce Chlorine?

A suitable carbon cartridge can provide chlorine reduction within its rated capacity and operating conditions.

Does It Reduce Unwanted Taste & Odour?

Yes, where the supplied carbon cartridge is specified for those treatment functions.

Does It Remove Heavy Metals?

Not automatically. Heavy-metal treatment should only be claimed where the exact cartridge supplied is specifically rated for that purpose.

Does It Produce Backwash Water?

The standard cartridge-based Triple 20 system does not operate an automatic backwash cycle like a regenerating treatment tank.

Is It Maintenance-Free?

No. The sediment, carbon and scale-control cartridges are consumable treatment components and require periodic replacement.

How Often Are the Filters Replaced?

Replacement depends on the exact cartridges supplied, incoming water conditions, water usage and cartridge capacity. Follow the specification for each installed cartridge.

Can It Be Used on Rainwater?

Filtration may form part of a rainwater system, but rainwater applications should also consider whether a separate microbiological treatment stage such as UV is required.

Can Installed Today Install It?

Professional installation may be available in eligible Brisbane and Gold Coast service areas where the plumbing, site access and system requirements are suitable.

WHY INSTALLED TODAY

Supply First, Installation Where Required

Supply Only Available

Purchase the WFW system without adding installation where you already have your own suitable installer or servicing arrangement.

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Clear Treatment Functions

The sediment, carbon and AntiScale stages are described separately without presenting scale control as conventional water softening or making unsupported purification claims.

Installation Capability

Installed Today can also support eligible local installations where the plumbing, system sizing and access requirements are suitable.

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FINAL CHECK

Is the WFW Triple 20 Big Blue with AntiScale Right for Your Property?

The WFW Triple 20" Big Blue with AntiScale Whole Home Water Filter System is designed for properties wanting three separate whole-house cartridge-treatment stages covering sediment filtration, scale control and carbon treatment.

Unlike the version supplied with UV, this configuration does not include an active ultraviolet stage and the passive filtration assembly does not require electrical power. The AntiScale stage also avoids the conventional salt-regeneration process used by an ion-exchange water softener.

Before ordering, confirm the exact sediment, AntiScale and carbon cartridges supplied, their required stage sequence, flow capability and suitability for your incoming water. Cartridge life is dependent on water conditions and usage, so the system should be treated as serviceable whole-house filtration rather than a maintenance-free appliance.

Buying a new hot water system, water filter, pump or plumbing product should be simple. Installed Today helps you compare the product, the supply-only price and the available installation options in one place, so you can choose what suits your home, budget and timing without the back and forth.

Whether you already know exactly what you need or you are still comparing options, we make it easier to order with confidence.

Why Customers Choose Installed Today

Supply Only or Installed Options

Choose the product on its own, or add installation where available. This gives you the flexibility to buy the way that suits you best.

Clear Pricing Before Checkout

See your product price upfront, then add the installation options or common extras you need before placing your order. No confusing quote forms just to understand your starting price.

Product Details That Actually Help

Key specs, sizing details, warranty information, product features and suitability notes are shown clearly, so you can compare products properly before you buy.

Installation Add-Ons Available

Where relevant, you can add common installation extras such as valve kits, bases, electrical options, removal, access-related items or other site-specific upgrades before checkout.

Built Around Brisbane and Gold Coast Homes

Our product and installation options are selected with common local homes, water quality, plumbing layouts, access issues and replacement requirements in mind.

One Simple Order

Add the product and selected extras to cart in one order, instead of trying to organise separate suppliers, installers and parts.

Practical Help Before You Buy

Not sure which product, size or installation option is right? Installed Today gives you a clearer path to choosing the right system before you order.

Designed To Make Your Decision Easier

Installed Today is built for customers who want a faster, clearer and more convenient way to buy.

Instead of guessing what is included, waiting for basic pricing or trying to work out which extras are needed, you can review the product, compare your options and move forward with confidence.

Choose supply only if you just need the product.

Choose supplied and installed if you want the product installed where available.

Add common extras before checkout if your job needs additional parts or site-specific options.

It is a simpler way to organise the product and the parts of the job that matter most.

Important Note

Installation availability, inclusions and add-ons vary by product type, site access, existing services, selected options and your property requirements. Some installations may require additional work, upgrades or checks before the job can proceed.

Fast & Reliable Delivery – What to Expect

Same Day Delivery: Available in Brisbane and Gold Coast on select units ordered before 8:00am
Express Delivery: 1–4 business days
Standard Delivery: 2–8 business days

Same Day Delivery

Same day delivery is available for selected hot water systems in Brisbane and Gold Coast metro areas when ordered before 8:00am, subject to stock availability, delivery capacity and suitable transport conditions.

Fast Metro Delivery

Most hot water orders in metro areas are delivered quickly, with around 90% arriving within 1 business day.

Weather Delays

Hot water systems cannot always be transported safely by courier during rain. Delivery timeframes may be affected when wet weather impacts safe handling, loading, unloading or transport conditions.

Express Delivery Guarantee

If your express delivery order takes longer than 1–4 business days, we will adjust the delivery timeframe to our standard 2–8 business days and refund your express shipping charge automatically.

Order Tracking

We will send your delivery details as soon as your order has been dispatched.

Need help with your delivery? Contact our team and we’ll be happy to assist.

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