WFW Twin 20" Big Blue + UV Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY - Plumbing - Filter
WFW Twin 20" Big Blue + UV Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY - Plumbing - Filter
WFW Twin 20" Big Blue + UV Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY - Plumbing - Filter
WFW Twin 20" Big Blue + UV Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY - Plumbing - Filter
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WFW Twin 20" Big Blue + UV Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY

Quick Specs & Benefits See what this filter targets and how it helps
  • Quality Category: Budget
  • Warranty: Limited 2 Year
  • NSF/ANSI Certified: No
What This Filter Helps With
Sediment & Visible Particles The product data lists particles such as dirt, sand, silt, rust or sediment. The particulate stage helps capture these suspended solids before they travel through taps and appliances.
Chlorine, Taste & Odour This model is listed to help reduce chlorine and/or related taste and odour concerns, helping improve the everyday taste and smell of water throughout the home.
VOCs, Pesticides & Other Organic Chemicals The product data lists reduction of one or more organic chemical groups such as VOCs, pesticides, herbicides, solvents or pharmaceuticals. Exact performance depends on the filter media and the individual contaminant.
Cysts / Microbiological Contaminants This model's data lists one or more cysts or microorganisms for reduction. This does not automatically mean the system disinfects water unless UV or another disinfection stage is specifically stated for the product.
View the full contaminant list for this model
Dirt, Sand, Silt, Rust, Sediment, Microplastics, Chlorine, Chloramine (partial reduction), Volatile Organic Compounds (VOCs), Pesticides, Herbicides, , E. coli, Salmonella, Campylobacter, Hepatitis A, Norovirus, Rotavirus, Giardia, Cryptosporidium, Algae, Fungal Spores, Microbial Cysts, Coliform Bacteria, and Legionella
"Helps reduce" or "removes" should be read according to the manufacturer's tested specification for the selected model and cartridge. Reduction does not necessarily mean 100% removal.
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WFW WHOLE HOME WATER FILTER INSTALLATION

WFW Twin 20" Big Blue + UV Installation Brisbane & Gold Coast

JR Gas & Water supplies and professionally installs the WFW Twin 20" Big Blue + UV Whole Home Water Filter System across eligible Brisbane and Gold Coast areas. It combines two large-format whole-house filter housings with a downstream ultraviolet treatment stage, giving homeowners a central point-of-entry filtration setup rather than filtering only one kitchen tap.

The system uses a sediment cartridge first, a carbon cartridge second and UV treatment after the cartridge stages. The exact sediment micron rating and carbon grade should be selected around the property's water source and treatment requirements rather than assumed to be identical for every installation.

JR's installation-led approach means the system is considered as part of the property's plumbing, available flow, incoming water position, electrical provision for the UV equipment and future servicing requirements. Installation is available throughout eligible areas of Brisbane, Gold Coast, Logan, Ipswich, Moreton Bay and Redlands.

WFW Twin 20" Big Blue + UV at a glance: this is a whole-house point-of-entry system using two 20" × 4.5" Big Blue cartridge housings followed by ultraviolet treatment. It is suited to properties wanting sediment and carbon filtration throughout the home with an additional UV stage. The standard WFW whole-house UV unit is listed at 48 L/min, while higher-flow UV models are available separately. JR Gas & Water can supply and install the system across eligible Brisbane and Gold Coast properties.

WFW Twin 20 Big Blue + UV Supply & Installation at a Glance

Product Type Whole-Home Filtration + UV
Filter Housings Twin 20" × 4.5" Big Blue
Standard WFW UV Up to 48 L/min
Installation Area Brisbane & Gold Coast

Who Is the WFW Twin 20 Big Blue + UV Best For?

Whole-House Filtration

A practical option when you want filtration installed on the incoming household water line so treatment is not limited to a single drinking-water outlet.

Sediment + Carbon + UV Treatment

Suitable where the treatment plan calls for physical sediment filtration, carbon treatment for chlorine, taste, colour or odour, and a separate downstream UV stage.

Properties With Service Space

Best where there is a suitable mounting position, accessible incoming pipework, enough room below the housings for cartridge changes and provision for servicing the UV lamp and quartz sleeve.

PRODUCT SUITABILITY

Is the WFW Twin 20 Big Blue + UV Right for My Home?

A Good Choice If...

  • You want whole-property filtration rather than one filtered tap.
  • You want separate sediment and carbon stages.
  • You want UV treatment after the cartridge filtration stages.
  • You have a suitable incoming water connection point.
  • You can provide appropriate service and cartridge-change access.

Consider Another Option If...

  • You only need filtered drinking water at the kitchen.
  • You require dedicated scale or hardness treatment.
  • Your treatment objective requires reverse osmosis or another specialist process.
  • The required household flow is higher than the selected UV unit can support.

JR Should Check First If...

  • Your water comes from a bore, dam, river or another untreated source.
  • You are unsure which sediment or carbon cartridge is required.
  • The incoming main is difficult to access.
  • No suitable electrical supply is available near the UV location.
  • You have unusually high simultaneous household water demand.
Important: UV is one treatment stage, not a universal water-treatment solution. Sediment filtration, carbon filtration and UV each perform different jobs. Water source, turbidity, actual flow, cartridge specification and UV contact time all affect the final treatment outcome.

What Size Home Does the WFW Twin 20 Big Blue + UV Suit?

Whole-house filter sizing should be based on water demand rather than bedroom count alone. The WFW Twin Big Blue platform uses two large 20" × 4.5" housings, but the practical flow of the completed installation is determined by the cartridges, incoming pressure, pipework and the UV unit installed after them.

Water Filter World's standard whole-house UV unit is listed at 48 litres per minute. Separate WFW UV models are available at higher listed flow rates, including 96 L/min and 192 L/min models. Those higher-flow UV units are separate products and should not be assumed to form part of this standard package.

For homes with high simultaneous demand, multiple bathrooms or large fixtures, JR should confirm actual peak flow requirements before the system is selected. This avoids choosing filtration hardware that becomes an unnecessary restriction at periods of high water use.

How Does the WFW Twin 20 Big Blue + UV Work?

Incoming household water passes through three distinct treatment stages. Keeping the functions separate allows sediment to be removed before the carbon cartridge and UV chamber, helping downstream components operate under more suitable conditions.

1

Sediment Filtration

The first 20" Big Blue housing contains the selected sediment cartridge, capturing suspended material such as dirt, sand, silt and particulate rust.

2

Carbon Treatment

Water then passes through the selected carbon cartridge. WFW currently offers different carbon grades, so chlorine, taste, odour and additional contaminant-reduction claims depend on the cartridge chosen.

3

UV Treatment

After cartridge filtration, water passes through the UV chamber. Effective UV treatment depends on the selected UV unit, actual operating flow, water clarity and the condition of the lamp and quartz sleeve.

Key Features of the WFW Twin 20 Big Blue + UV

Twin 20" × 4.5" Housings

Large-format Big Blue housings provide separate positions for sediment and carbon treatment on the incoming household supply.

Selectable Carbon Grade

The WFW platform is available with a basic 10-micron carbon option or a high-grade 0.5-micron carbon option. Their treatment specifications are different, so the selected cartridge matters.

Whole-House UV Stage

The UV equipment is installed downstream of the filtration housings. WFW's standard whole-house unit is listed at up to 48 L/min.

Dual Pressure Gauges

Two gauges are included with the current Twin Big Blue assembly and can assist with monitoring pressure across the filtration stages as cartridges load.

Brass Ports & Mounting Bracket

The manufacturer's current Twin Big Blue package includes brass ports and a heavy-duty mounting bracket.

BPA-Free, UV-Stabilised Housings

Water Filter World states that the filtration assembly uses 100% BPA-free plastics and UV-stabilised housings.

WFW Twin 20 Big Blue + UV Specifications

Specification Detail
Brand WFW / Water Filter World
Application Whole-house / point-of-entry water filtration
Housing Configuration Twin 20" × 4.5" Big Blue
Stage 1 Sediment cartridge; exact micron rating depends on selected cartridge
Stage 2 Basic Option 10-micron basic-grade carbon cartridge
Stage 2 High-Grade Option 0.5-micron high-grade carbon cartridge
Stage 3 Whole-house ultraviolet treatment
Standard WFW Whole-House UV Up to 48 L/min
Higher-Flow WFW UV Options 96 L/min and 192 L/min models available separately
Pressure Gauges Dual gauges included with current Twin Big Blue assembly
Ports Brass ports
Housing Material 100% BPA-free plastics stated by manufacturer
Housing Treatment UV stabilised
Listed Burst Pressure 90 PSI
Filtration Assembly Dimensions Approx. 700 mm H × 400 mm W × 200 mm D
NSF/ANSI Certification No — as currently listed by JR Gas & Water
Product Warranty Limited 2 Year
JR Lifetime Warranty Eligible when applicable JR installation and warranty conditions are met

The approximate 700 × 400 × 200 mm dimensions relate to the Twin Big Blue filtration assembly. Allow additional space for the UV equipment, pipework, isolation and future servicing.

INSTALLATION REQUIREMENTS

What Is Required to Install the WFW Twin 20 Big Blue + UV?

  • Suitable position on the incoming household water line
  • Accessible upstream isolation
  • Sufficient wall or structural support for secure mounting
  • Space for the approximately 700 × 400 × 200 mm filter assembly
  • Additional clearance beneath the housings for cartridge removal
  • Pipework suited to the intended household flow
  • Suitable installation position for the UV equipment
  • Suitable electrical provision for the UV system
  • Access for annual UV lamp replacement
  • Access for quartz-sleeve inspection and cleaning
  • Future access to both cartridge housings
  • Licensed plumbing installation where required
Outdoor installation: the filtration housings are manufacturer-listed as UV stabilised, but the full installation still needs to be positioned and protected appropriately for the equipment supplied, electrical components and future servicing requirements.

What's Included With WFW Twin 20 Big Blue + UV Installation?

Selected Installation Package

The live product and installation selector above is the source of truth for the package you choose. It allows the product, installation timeframe and relevant installation options to be selected before booking.

Connection & Commissioning

For a suitable standard installation, the system is connected into the applicable water line, checked for correct operation and commissioned as part of the selected JR installation package.

Possible Additional Work

Relocation, unusual access, additional pipework, excavation, structural work, electrical upgrades or provision, non-standard mounting and other site-specific work may require assessment or additional cost.

How Much Does WFW Twin 20 Big Blue + UV Installation Cost?

Current supplied-and-installed pricing is shown in the live product and installation selector above. Keeping the live selector as the pricing source avoids publishing a fixed long-form price that may become outdated when installation packages or product pricing change.

The final WFW Twin 20 Big Blue + UV installation cost depends on the selected package and the property. Factors can include the installation position, existing incoming pipework, mounting requirements, accessibility, electrical provision for the UV equipment, whether additional pipework is needed and whether the work is a straightforward replacement or a new filtration installation.

If the standard package does not match the property, JR can assess the job and provide a written or onsite quote before non-standard work proceeds.

BRISBANE INSTALLATION

WFW Twin 20 Big Blue + UV Installation Brisbane

JR Gas & Water supplies and installs the WFW Twin 20 Big Blue + UV across eligible Brisbane properties, including suitable homes requiring a new whole-house filtration setup or replacement of an existing point-of-entry system.

For Brisbane installations, the first step is identifying the property's water source and a practical position on the incoming water supply. A straightforward installation needs sufficient mounting space for the Twin Big Blue assembly, clearance beneath the housings for future filter changes and an appropriate position and power provision for the UV equipment.

Homes on treated mains water and properties using tank or rainwater do not automatically require the same cartridge configuration. JR can confirm whether the selected sediment cartridge, carbon grade and UV arrangement match the actual treatment objective before installation. Eligible service areas also extend through Logan, Ipswich, Moreton Bay and Redlands.

GOLD COAST INSTALLATION

WFW Twin 20 Big Blue + UV Installation Gold Coast

JR Gas & Water also provides WFW Twin 20 Big Blue + UV supply and installation across eligible Gold Coast properties. The system can be considered when a homeowner wants filtration applied to the main household water supply rather than maintaining separate filters at individual fixtures.

Gold Coast installation planning focuses on finding a serviceable point-of-entry location where the two large housings, UV equipment and associated plumbing can remain accessible. Future maintenance matters: cartridges must be removable without dismantling surrounding equipment, and the UV chamber needs access for lamp and quartz-sleeve servicing.

If an existing filtration system is already installed, JR can assess whether the available pipework, mounting position and electrical setup are suitable for a WFW replacement or whether modification is required. Where the existing arrangement does not fit a standard installation package, a quote pathway remains available.

Can the WFW Twin 20 Big Blue + UV Replace My Existing System?

Replacing Another Twin Whole-House System

A replacement may be relatively straightforward where the existing incoming and outgoing plumbing, installation position, available space and mounting arrangement suit the WFW assembly. Connection positions still need to be checked rather than assumed.

Adding UV to an Existing Setup

Where an existing system has cartridge filtration but no UV, adding ultraviolet treatment requires a suitable downstream installation position, electrical provision and confirmation that the UV model suits the required household flow.

Replacing Another Brand

The WFW system can potentially replace another whole-house filter brand, but housing dimensions, connection points, bracket locations and service clearances may differ. Additional plumbing work can therefore be required.

Changing the Treatment Method

If the existing setup includes reverse osmosis, softening, antiscale treatment or other specialist equipment, the WFW Twin + UV should not automatically be treated as an equivalent replacement. JR should confirm the required treatment stages first.

Which WFW Twin 20 Big Blue Configuration Do I Need?

The physical Twin Big Blue platform can be configured with different cartridges. That means the housing size alone does not tell you the treatment performance of the complete system.

Sediment Cartridge

WFW offers multiple 20" × 4.5" sediment cartridge options. The micron rating should be selected around the source water, sediment loading and required flow rather than assuming one fixed cartridge is supplied for every job.

Basic Carbon – 10 Micron

The basic-grade carbon configuration is manufacturer-listed for chlorine reduction and improvement of unwanted taste, colour and odour.

High-Grade Carbon – 0.5 Micron

The manufacturer's high-grade carbon option has a different treatment specification and is listed for additional contaminant reduction under its stated operating conditions. Confirm the selected cartridge before relying on those claims.

Do not mix specifications between cartridges. Treatment claims for the WFW 0.5-micron high-grade carbon cartridge should not automatically be applied to the 10-micron basic-grade configuration.

How Often Does the WFW Twin 20 Big Blue + UV Need Servicing?

There is no single cartridge replacement interval that is correct for every Twin Big Blue installation. Cartridge life varies with the specific cartridge fitted, water quality, sediment loading, treatment demand and household water usage.

Sediment Cartridge

Replace according to the selected cartridge specification and actual loading. Increasing pressure loss or reduced household flow can indicate that a sediment cartridge is becoming restricted.

Carbon Cartridge

Replacement timing depends on the carbon grade, incoming water, chlorine or contaminant loading, usage and the manufacturer's specification for the selected cartridge.

UV Lamp & Quartz Sleeve

Water Filter World specifies a 12-month lamp life for its UV range. The quartz sleeve should also be inspected and kept clean so deposits do not interfere with UV transmission.

A UV lamp may still visibly illuminate after its effective service period. Lamp replacement should therefore follow the manufacturer's interval rather than waiting for the lamp to stop glowing.

How Does the WFW Twin 20 Big Blue + UV Compare With Similar Options?

Option Treatment Setup Best Considered When Key Difference
WFW Twin 20 Big Blue Sediment + carbon You want whole-house cartridge filtration without a UV stage Simpler two-stage configuration
WFW Twin 20 Big Blue + UV Sediment + carbon + UV You want large-format cartridge filtration with downstream UV treatment Adds ultraviolet treatment after filtration
WFW Twin 20 Enclosed + UV Sediment + carbon + UV in an enclosed format You prefer a more enclosed whole-house filtration presentation Different physical housing/presentation arrangement
Triple / Antiscale Configuration Additional treatment stage plus UV where selected Your treatment plan requires an extra dedicated stage Standard Twin + UV does not include dedicated scale-control treatment

No one configuration is universally better. The useful comparison is whether the property needs two cartridge stages, UV treatment, dedicated scale treatment, an enclosure, higher flow capability or another specialist treatment process.

COMMON QUESTIONS

WFW Twin 20 Big Blue + UV Installation FAQs

How much does WFW Twin 20 Big Blue + UV installation cost?

Current supplied-and-installed pricing is shown in the live JR product and installation selector above. Final cost depends on the selected package and any site-specific plumbing, mounting, electrical, access or relocation work required.

Can JR Gas & Water install the WFW Twin 20 Big Blue + UV in Brisbane?

Yes. JR Gas & Water supplies and installs the WFW Twin 20 Big Blue + UV across eligible Brisbane and surrounding South East Queensland service areas.

Can JR install the WFW Twin 20 Big Blue + UV on the Gold Coast?

Yes. Professional supply and installation is available across eligible Gold Coast areas, subject to the property's plumbing, access, mounting and electrical requirements.

What are the dimensions of the WFW Twin Big Blue filter assembly?

Water Filter World lists the Twin Big Blue filtration assembly at approximately 700 mm high × 400 mm wide × 200 mm deep. Extra space is required for pipework, the UV equipment and cartridge servicing.

What flow rate does the UV system provide?

Water Filter World's standard whole-house UV unit is listed at up to 48 L/min. Separate higher-flow WFW UV units are listed at 96 L/min and 192 L/min. Confirm the actual UV model supplied with your package before relying on a particular flow figure.

Is the sediment filter 1 micron or 5 micron?

There is no single sediment micron rating that applies to every WFW Twin Big Blue configuration. Water Filter World offers multiple 20" × 4.5" sediment cartridge options. Confirm the cartridge selected for your property and water source.

What carbon cartridge does the system use?

The WFW Twin Big Blue platform is currently available with different carbon grades, including a 10-micron basic-grade carbon option and a 0.5-micron high-grade option. Their treatment specifications are not identical.

How often should the UV lamp be replaced?

Water Filter World specifies a 12-month lamp life for its UV range. The quartz sleeve should also be inspected and kept clean as part of UV maintenance.

Does UV replace the sediment and carbon filters?

No. Sediment filtration, carbon filtration and UV treatment perform different functions. The system is designed so the cartridge stages treat the water before it reaches the UV chamber.

Does this system include scale or hardness treatment?

No dedicated scale-control stage is included in the standard Twin Big Blue + UV configuration. If hardness or scale treatment is required, an appropriate additional treatment system should be considered.

Can the WFW Twin Big Blue + UV be used with tank water?

WFW lists Twin Big Blue configurations and UV treatment for tank-water applications, but the correct treatment setup depends on actual source-water quality. Untreated bore, dam, river or other non-mains water may require testing and additional treatment beyond sediment, carbon and UV.

Is the WFW Twin 20 Big Blue + UV NSF/ANSI certified?

No. JR Gas & Water currently lists this product as not NSF/ANSI certified. This should not be confused with WaterMark requirements applying to plumbing products and assemblies.

WFW Twin 20 Big Blue + UV Warranty and Maintenance

Manufacturer / Product Warranty

JR currently lists the WFW Twin 20 Big Blue + UV with a Limited 2 Year product warranty. Warranty conditions should be checked against the documentation supplied with the selected equipment.

JR Lifetime Warranty Eligibility

The live JR product page lists this system as Lifetime Warranty eligible. JR's Lifetime Warranty is separate from the manufacturer's product warranty and remains subject to the applicable JR warranty terms and installation conditions.

Ongoing Maintenance

Plan for cartridge replacement based on cartridge condition and usage, UV lamp replacement at the applicable manufacturer interval, quartz-sleeve inspection and routine checks of flow, pressure and system condition.

Why Choose JR Gas & Water for WFW Twin Big Blue + UV Installation?

Licensed Local Installation

JR provides professional plumbing installation across Brisbane, Gold Coast and surrounding eligible South East Queensland areas.

Installation Packages Online

The live selector allows customers to review the product, choose an applicable installation pathway and use the quote option when the property falls outside standard conditions.

After-Installation Support

Whole-house filters require ongoing cartridges and UV servicing. JR's installation-led approach considers future service access rather than treating the system as a supply-only appliance.

COMPARE YOUR OPTIONS

Compare Water Filtration Systems & Installation Options

Use JR Gas & Water's current filtration categories to compare whole-house, UV, rainwater and replacement-filter options before selecting your final setup.

All Water Filtration Systems Whole Home Mains Water Filtration Ultra Violet UV Water Filtration Rain Water Filtration Water Filter Cartridges WFW Water Filter World
READY TO INSTALL

Install the WFW Twin 20 Big Blue + UV With JR Gas & Water

The WFW Twin 20 Big Blue + UV is a whole-house filtration option for properties needing separate sediment and carbon treatment followed by a UV stage. Its large 20" × 4.5" housings, selectable cartridge configurations, pressure gauges and downstream UV arrangement make correct product configuration and installation important.

JR Gas & Water supplies and installs the system across eligible Brisbane and Gold Coast properties. Before booking, confirm the selected cartridge configuration, required UV flow, installation location, service access and electrical provision using the product and installation selector above.

Choose Your Installation Package Above

Select the installation option and preferred installation timeframe that suits your property. If the standard installation conditions do not match your job, use the onsite or written quote pathway before ordering.

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