WFW Twin 20" Enclosed Whole Home Water Filter System | Supply+Install | LIFETIME WARRANTY - Plumbing - Filter
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WFW Twin 20" Enclosed 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.
View the full contaminant list for this model
Dirt, Sand, Silt, Rust, Sediment, Microplastics, Chlorine, Chloramine (partial reduction), Volatile Organic Compounds (VOCs), Pesticides, and Herbicides
"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" Enclosed Installation Brisbane & Gold Coast

JR Gas & Water supplies and professionally installs the WFW Twin 20" Enclosed Whole Home Water Filter System across eligible Brisbane and Gold Coast properties. It is a two-stage point-of-entry filtration system designed to treat incoming household water through a sediment cartridge followed by a carbon cartridge.

The enclosed version packages the large-format Twin Big Blue filtration assembly within a stainless-covered installation format rather than leaving both filter housings fully exposed. This makes it particularly relevant where homeowners want whole-house filtration with a cleaner, more protected finished installation.

JR's installation approach considers the complete property rather than just the filter housings. Incoming water quality, cartridge grade, required household flow, pipe sizing, water pressure, mounting or standing position and future service access all affect whether the system is right for the job.

WFW Twin 20 Enclosed at a glance: this is a two-stage whole-house water filtration system using sediment filtration followed by carbon treatment inside a covered installation format. The standard Twin Enclosed model does not include UV or dedicated AntiScale treatment. Water Filter World offers different cartridge grades for the Twin platform, so the exact micron rating, contaminant reduction and usable flow should be confirmed against the configuration selected.

WFW Twin 20 Enclosed Supply & Installation at a Glance

Product Type Whole-Home Filtration
Filtration Stages 2 × 20-Inch
Treatment Sediment + Carbon
Installation Area Brisbane & Gold Coast

Who Is the WFW Twin 20 Enclosed Best For?

Whole-House Filtration

Suitable where you want filtration installed on the incoming household supply so downstream bathrooms, kitchens, laundries and connected appliances receive water that has passed through both stages.

Sediment & Carbon Treatment

A practical configuration where the primary treatment goals are suspended particulate filtration followed by carbon treatment for chlorine and unwanted taste or odour.

Customers Wanting an Enclosed Finish

The stainless-covered format can provide a neater and more protected presentation than exposed Big Blue housings while retaining access to two full-size cartridge stages.

PRODUCT SUITABILITY

Is the WFW Twin 20 Enclosed Right for My Home?

A Good Choice If...

  • You want filtration throughout the property.
  • Sediment is one of your treatment concerns.
  • You want carbon treatment for chlorine, taste or odour.
  • You prefer an enclosed whole-house installation.
  • You have suitable access to the incoming main.
  • You can maintain future cartridge-service access.

Consider Another Option If...

  • You specifically require UV treatment.
  • You need dedicated scale or hardness treatment.
  • You only require filtered drinking water at one outlet.
  • Your source water requires specialist iron or manganese treatment.
  • You require reverse osmosis or another specialist process.

JR Should Check First If...

  • Your property uses bore, dam or untreated source water.
  • Your rainwater system needs microbiological treatment.
  • The incoming water main is hidden or difficult to access.
  • You have unusually high simultaneous water demand.
  • You are unsure which carbon grade is appropriate.
Important: this standard Twin 20 Enclosed system is a sediment-and-carbon filtration system. UV treatment, water softening and dedicated AntiScale treatment are separate treatment functions and should not be assumed to be included.

What Size Home Does the WFW Twin 20 Enclosed Suit?

Water Filter World describes its Twin 20" × 4.5" whole-house platform as suitable for homes with two or more bathrooms. That is a useful starting point, but the final suitability of an installed system still depends on more than bathroom count alone.

The usable flow through the complete filter is affected by the sediment cartridge, carbon grade, incoming pressure, pipe diameter, fittings and cartridge condition. A finer or higher-grade carbon cartridge may have different pressure-drop and flow characteristics from a more open basic carbon cartridge.

For larger homes or properties where several showers, taps and appliances may operate simultaneously, JR should confirm expected peak demand before finalising the filtration configuration.

How Does the WFW Twin 20 Enclosed Work?

The system treats incoming household water through two separate large-format filtration stages before the water is distributed through the applicable downstream plumbing.

1

Stage 1 – Sediment Filtration

The first cartridge provides physical filtration of suspended material such as dirt, sand, silt and particulate rust. Removing this material first also reduces unnecessary particulate loading on the downstream carbon cartridge.

2

Stage 2 – Carbon Filtration

The second cartridge uses carbon media to reduce chlorine and improve unwanted taste, colour or odour within the rated capabilities of the specific carbon cartridge selected.

UV is not standard equipment. The WFW Twin 20" Enclosed + UV is a separate system. This page is for the standard Twin Enclosed sediment-and-carbon configuration.

Key Features of the WFW Twin 20 Enclosed

Twin 20" × 4.5" Filtration

Two large-format whole-house treatment stages provide dedicated positions for sediment filtration followed by carbon treatment.

Stainless Cover & Stand

Water Filter World supplies the covered Twin Big Blue format with a stainless cover and stand, giving the system a more enclosed finished appearance.

Selectable Carbon Grade

WFW offers different carbon options across the Twin Big Blue platform, including basic-grade and high-grade configurations. Treatment claims should match the cartridge actually selected.

Dual Pressure Gauges

The current manufacturer configuration includes two pressure gauges to assist with observing system pressure and changes that may indicate increasing filter restriction.

Brass Ports

Water Filter World lists solid brass ports as part of its current Twin Big Blue covered system specification.

Passive Filtration

The standard sediment and carbon stages do not require electrical power. Electrical provision only becomes relevant where powered treatment equipment such as UV is added separately.

WFW Twin 20 Enclosed Specifications

Specification Detail
Brand WFW / Water Filter World
Product Type Enclosed whole-house point-of-entry water filtration system
Configuration Twin 20" × 4.5" large-format filtration
Stage 1 Sediment filtration
Stage 2 Carbon filtration
Sediment Micron Rating Configuration dependent — confirm selected cartridge
Carbon Grade Configuration dependent
Basic Carbon Option Manufacturer offers a 10-micron basic-grade carbon configuration
High-Grade Carbon Option Manufacturer offers a 0.5-micron high-grade carbon configuration
UV Treatment Not standard — separate WFW Enclosed + UV configuration available
Scale Treatment Not standard in this Twin configuration
Electrical Supply Not required for the two standard passive filtration stages
Approximate Dimensions 700 mm H × 400 mm W × 200 mm D
Enclosure Stainless cover and stand on the current manufacturer covered configuration
Pressure Gauges Dual gauges
Ports Brass ports
Manufacturer-Listed Burst Pressure 90 PSI
Whole-House Flow Confirm against exact cartridges, incoming pressure and installed configuration
WaterMark Manufacturer lists the covered Twin Big Blue system as Australian WaterMark approved
NSF/ANSI Certification No — as currently listed by JR Gas & Water
Product Warranty Limited 2 Year
JR Lifetime Warranty Eligible where applicable JR installation and warranty conditions are met

WaterMark approval and NSF/ANSI certification are different things. WaterMark relates to applicable Australian plumbing-product requirements; it should not be presented as proof that every cartridge has been independently certified for every possible contaminant claim.

INSTALLATION REQUIREMENTS

What Is Required to Install the WFW Twin 20 Enclosed?

  • Suitable point on the incoming household water supply
  • Accessible upstream water isolation
  • Visible and accessible connection pipework for applicable standard packages
  • Suitable mounting surface for a wall-mounted installation
  • Suitable stable surface for a freestanding installation where selected
  • Enough space for the approximately 700 × 400 × 200 mm assembly
  • Additional clearance for pipework and service access
  • Clearance to remove both filter cartridges
  • Pipe sizing appropriate for household water demand
  • Suitable incoming pressure for the installed components
  • Future access to gauges, connections and housings
  • Licensed plumbing installation where required
Enclosed does not mean service-free. The installation still needs enough accessible space for both 20-inch cartridges to be removed and replaced without dismantling surrounding plumbing or equipment.

What's Included With WFW Twin 20 Enclosed Installation?

Selected Installation Package

The live product and installation selector above remains the source of truth for your chosen package, current price, mounting arrangement and available installation timeframe.

Connection & Commissioning

For an applicable standard installation, the filter is connected to the suitable incoming household water line and the completed plumbing installation is checked for operation and leaks.

Possible Additional Work

Hidden pipework, relocation, additional valves, extensive copper work, excavation, difficult access, unsuitable mounting surfaces and other site-specific conditions can fall outside a standard installation package.

How Much Does WFW Twin 20 Enclosed Installation Cost?

Current supplied-and-installed pricing is displayed in JR's live product and installation selector above. That selector should remain the pricing source rather than embedding a fixed long-term installation price within this content.

The final installation cost can vary depending on whether the job is an exact replacement or new installation, whether the incoming main is visible, whether the system is wall mounted or freestanding, pipework modifications, valves, pressure-control requirements, access and relocation.

If the online package conditions do not accurately describe the property, JR provides written and onsite quote pathways so non-standard installation work can be assessed before proceeding.

BRISBANE INSTALLATION

WFW Twin 20 Enclosed Installation Brisbane

JR Gas & Water supplies and installs the WFW Twin 20 Enclosed system across eligible Brisbane properties where homeowners want whole-house sediment and carbon filtration with a more enclosed finished appearance than an exposed Big Blue system.

For a Brisbane installation, JR considers where the incoming water main enters the property, whether there is suitable wall or floor support and whether both cartridges can remain accessible for future servicing. Existing filtration installations may allow a simpler replacement pathway, while a brand-new point-of-entry installation can require additional pipework and isolation.

The cartridge configuration should also suit the actual water source and treatment objective. Mains-water treatment focused on sediment, chlorine, taste and odour is different from the treatment required for untreated rainwater or bore water. Eligible JR service areas also extend through Logan, Ipswich, Moreton Bay and Redlands.

GOLD COAST INSTALLATION

WFW Twin 20 Enclosed Installation Gold Coast

JR Gas & Water also provides WFW Twin 20 Enclosed supply and installation throughout eligible Gold Coast areas. The system can suit customers wanting filtration at the property's main water entry point while keeping the large filter housings within a covered installation format.

For Gold Coast properties with multiple bathrooms or high simultaneous demand, JR should confirm that the selected sediment and carbon cartridges provide suitable flow rather than relying on a generic maximum-flow claim. Finer filtration can provide different treatment performance but may also change pressure drop.

Where an existing filter is being replaced, connection points, enclosure size, mounting method and service clearance should be checked before treating the installation as like-for-like. JR's quote pathway remains available where modifications or relocation are required.

Can the WFW Twin 20 Enclosed Replace My Existing Water Filter?

Exact WFW Replacement

An existing WFW Twin Enclosed system in the same suitable position may provide the simplest replacement pathway where the existing connections and installation remain serviceable.

Replacing an Exposed Twin Big Blue

Potentially. The treatment stages may be similar, but the covered arrangement changes the physical installation and may require different mounting, standing space or pipe alignment.

Replacing Another Brand

The WFW Twin Enclosed can potentially replace another two-stage whole-house filter, but port positions, overall dimensions, housing spacing and service access may differ.

Replacing a UV System

This standard model should not automatically replace a system where UV was part of the required treatment. If UV remains necessary, the WFW Enclosed + UV or another suitable UV configuration should be assessed.

Which WFW Twin 20 Enclosed Filter Configuration Do I Need?

The Twin 20 platform can be fitted with different sediment and carbon cartridges. The physical housings can therefore look identical while providing different filtration performance.

Sediment Cartridge

The first stage should be matched to incoming particulate loading and required flow. Do not assume every Twin 20 system uses one fixed sediment micron rating.

Basic-Grade Carbon

Water Filter World currently offers a basic-grade configuration using a 10-micron carbon filter for chlorine and unwanted taste, colour and odour treatment.

High-Grade Carbon

WFW also offers a 0.5-micron high-grade carbon configuration with additional manufacturer-listed reduction capabilities. Those claims apply to the high-grade cartridge rather than every Twin system.

Cartridge grade matters. Do not transfer heavy-metal, cyst, VOC or other specialist reduction claims from one WFW carbon cartridge to another unless the exact installed cartridge is rated for that function.

How Often Does the WFW Twin 20 Enclosed Need Servicing?

The system uses replaceable sediment and carbon cartridges and should not be treated as maintenance-free. Installed Today currently uses a general 6–12 month replacement guide for this product, but actual cartridge life depends on the exact filter media, water quality and household usage.

Sediment Cartridge

Replace according to particulate loading, usage, pressure drop and the service specification of the exact cartridge fitted. A noticeable reduction in flow can indicate increasing restriction.

Carbon Cartridge

Carbon service life depends on the cartridge grade, chlorine and contaminant loading, household water consumption and the manufacturer's rated capacity.

Housings, Gauges & Seals

Whenever the system is opened, inspect housing O-rings and sealing surfaces. Gauges and connections should also be checked as part of routine system inspection.

Useful signs that servicing may be due include increasing pressure drop, reduced household flow, returning chlorine taste or odour, known heavy sediment loading or an unknown previous service date.

How Does the WFW Twin 20 Enclosed Compare With Similar Options?

System Treatment Best Considered When Main Difference
WFW Twin 20 Big Blue Sediment + carbon You want straightforward whole-house cartridge filtration in an exposed format No stainless enclosure/stand
WFW Twin 20 Enclosed Sediment + carbon You want two-stage whole-house filtration in a covered installation format Stainless-covered presentation
WFW Twin 20 Enclosed + UV Sediment + carbon + UV Your treatment plan requires whole-house filtration plus an ultraviolet treatment stage Adds powered UV equipment
WFW Triple AntiScale Enclosed Sediment + AntiScale + carbon Scale-control treatment is required in addition to standard cartridge filtration Adds a dedicated third treatment stage

The right option depends on the actual treatment goal. An enclosure changes the physical installation, while UV and AntiScale configurations add completely different treatment functions.

COMMON QUESTIONS

WFW Twin 20 Enclosed Installation FAQs

How much does WFW Twin 20 Enclosed installation cost?

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

Can JR install the WFW Twin 20 Enclosed in Brisbane?

Yes. JR Gas & Water supplies and installs the system across eligible Brisbane and surrounding South East Queensland service areas.

Can JR install the WFW Twin 20 Enclosed on the Gold Coast?

Yes. Professional supply and installation are available across eligible Gold Coast areas, subject to access, plumbing and installation requirements.

Does the WFW Twin 20 Enclosed include UV?

No. The standard Twin 20 Enclosed system uses sediment and carbon filtration. The WFW Twin 20 Enclosed + UV is a separate configuration.

What filters are included?

The treatment sequence is sediment filtration followed by carbon filtration. The exact sediment micron rating and carbon grade should be confirmed against the configuration selected.

What are the dimensions of the WFW Twin 20 Enclosed system?

Water Filter World lists the covered Twin Big Blue system at approximately 700 mm high × 400 mm wide × 200 mm deep. Extra clearance is required for plumbing and future servicing.

Is the WFW Twin 20 Enclosed suitable for a home with multiple bathrooms?

Water Filter World describes its Twin 20" × 4.5" system as suitable for homes with two or more bathrooms. Actual suitability still depends on cartridge selection, incoming pressure and simultaneous household flow.

Does the WFW Twin 20 Enclosed remove heavy metals?

Do not assume that every carbon configuration has the same heavy-metal reduction capability. WFW lists additional reduction claims for specific high-grade cartridges, so the exact carbon filter must be confirmed first.

Does the system reduce chlorine?

Yes, suitable WFW carbon configurations are listed for chlorine reduction. Performance depends on the selected cartridge, operating flow, water quality and cartridge service condition.

How often should the cartridges be replaced?

A general 6–12 month service interval is currently used for this product, but actual replacement timing depends on the cartridges selected, source-water quality, sediment loading and household water usage.

Is the WFW Twin 20 Enclosed WaterMark approved?

Water Filter World currently lists its covered Twin Big Blue whole-house system as Australian WaterMark approved. WaterMark should not be confused with independent NSF/ANSI contaminant-reduction certification.

Is the WFW Twin 20 Enclosed NSF/ANSI certified?

No. JR Gas & Water currently lists the system as not NSF/ANSI certified. Specific reduction claims should therefore remain tied to the exact cartridge and manufacturer specification supplied.

Can the Twin 20 Enclosed be used with rainwater or bore water?

Sediment and carbon filtration can form part of a broader treatment setup, but untreated rainwater or bore water may require testing, UV or specialist treatment beyond this standard two-stage configuration.

WFW Twin 20 Enclosed Warranty and Maintenance

Product Warranty

JR currently lists the WFW Twin 20 Enclosed Whole Home Water Filter System with a Limited 2 Year product warranty. Applicable conditions should be checked against the documentation supplied.

JR Lifetime Warranty Eligibility

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

Ongoing Filter Maintenance

Record the sediment and carbon cartridges installed, replace them at the appropriate intervals and inspect the filter housings, seals, gauges and plumbing connections during routine servicing.

Why Choose JR Gas & Water for WFW Twin 20 Enclosed Installation?

Installation-Led Selection

JR considers water source, filtration goal, cartridge grade, required flow, pipework and service access instead of treating every Twin system as an identical installation.

Live Installation Packages

The current JR selector provides installation-package pathways based on replacement versus new installation, visible pipework and wall-mounted or freestanding requirements.

Brisbane & Gold Coast Coverage

Professional whole-home water-filter installation is available across eligible Brisbane, Gold Coast and surrounding South East Queensland service areas.

COMPARE YOUR OPTIONS

Compare Whole-Home Water Filtration & Service Options

Compare JR's current whole-home, UV and rainwater filtration ranges or find replacement cartridges for your existing system.

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 Enclosed With JR Gas & Water

The WFW Twin 20 Enclosed is a straightforward whole-house filtration option for properties wanting large-format sediment and carbon filtration within a covered stainless installation format. It does not automatically add UV, scale control or specialist treatment that the water source may not require.

JR Gas & Water supplies and installs the system across eligible Brisbane and Gold Coast properties. Before booking, confirm the cartridge grade, required household flow, installation position, mounting arrangement and future servicing clearance using the live product and installation selector above.

Choose Your Installation Package Above

Select the appropriate installation package and preferred timeframe using the live selector. If your incoming main is hidden, the installation requires relocation or your water source needs treatment beyond sediment and carbon filtration, use the written or onsite quote pathway before proceeding.

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