• Rainwater Tank Filtration with Polyspun and Aragon
  • polyspun sediment filter cartridge 9 inch
  • Aragon Bio
  • Twin Undersink Water Filter Hoses and Wrench
  • AS-420-Battery-operated-Leak-Stopper-with-filter-life-monitor
  • Chrome Retro Faucet with High Loop and Long Reach

Aragon Twin Under Sink Water Filter – Rain & Bore Guard

$399.00 inc. GST

Stop muddy sediment and harmful bacteria with this rainwater tank filter for cleaner, safer drinking water.

  • European-made Aragon Bio filter to remove Viruses (Hepatitis A, Rotavirus, Polio), Bacteria, Heavy Metals, Pesticides, and radioactive elements, while reducing scale in hard water.
  • High-capacity Polyspun Sediment Pre-Filter to stop dirt, rust, sand, silt, and algae.
  • Tested and certified by Independent Scientific Certification Bodies.
  • Includes Emergency Leak Shut-off Valve ($99 value) for total peace of mind.
  • Includes sleek Retro High Loop chrome filter faucet ($79 value)
  • Hand-built in Sydney, backed by a 5-year housing warranty, and fully compliant with Watermark standard AS/NZS 3497:1998.
  • DIY-friendly setup: install it with basic tools, or have a plumber do it for you. It’s simple either way.
  • Annual filter replacement cost from $137. Replace filters every 6-12 months (depending on your water quality).
  • Free shipping

Upgrade to a 3-way mixer tap

Hot, cold, and filtered water from one tap. No extra drilling required.

None Side Lever High Loop 3 Way Mixer Chrome +$409.00 Side Lever Long Reach 3 Way Mixer Chrome +$349.00 Stainless Steel 3 Way High Loop Matte Black Mixer Tap +$449.00
SKU: IT007290-RBG Categories: ,

Description

Specifications

  • Filter life: 6-12 months or 7,000 litre
  • 0.4 Micron (Aragon Bio) 1 Micron (Polyspun)
  • Maximum flow rate: 2.5 litres per minute
  • min. pressure required: 40PSI
  • Warranty: 5 years (housing)
  • Temperature Range: 2°C – 38°C
  • Dimensions: 23(W) x 34 (H) x 13(D)
  • Watermark Certificate Number: 23124

This system is specialised for Rain, Tank, and Bore water sources. If you are on Town Water and want to target Fluoride and Chlorine, please see our CTO Max Twin Under Sink Water Filter – Sediment & Fluoride Shield system.

Certified Under Sink Water Filtration

This system meets the WaterMark specification AS/NZS 3497:1998 Amdt 1 2001 Drinking water treatment unit – Plumbing requirements.
Certificate Number 23124.

Everything You Want to Know

What's included in the system?

The system comes complete with the first set of filters, housing, leak stopper & filter life monitor, faucet, hoses, screws, locking clips, and all components required for installation (excluding tools).

Polyspun Pre Filter: Every 6-12 months ($18).
Aragon Bio Filter Cartridge:  Every 12 months or 7,000 Litres ($119).

Yes, you can install this undersink water purifier yourself if you have basic plumbing skills. It’s WaterMark approved, meaning it meets Australian plumbing standards. If you prefer, your local licensed plumber can install it for you as well.

This rainwater tank filtration system is specifically designed  for the untreated water found in tanks and bores. It targets the most dangerous environmental contaminants, including:

  • Viruses & Bacteria: Removes 99.9% of E. coli, Salmonella, Rotavirus, and Hepatitis A found in bird and animal waste.
  • Radioactive Elements: Specifically filters out Uranium and Radium, providing crucial protection for bore water users.
  • Heavy Metals: Strips out Lead, Iron, Copper, and Aluminium often found in groundwater and roof runoff.
  • Agricultural Runoff: Filters out Pesticides, Herbicides, and Hydrocarbons.
  • Sediment & Debris: Blocks mud, rust, algae, and dirt to keep your water crystal clear.
  • Reduces scale in hard water.

Simply twist open the housing, remove the old cartridge, insert the new one, and twist the housing closed. No special tools are required — and a filter wrench is included to make the process even easier. It’s quick and straightforward.

Replacement Filter Cartridges for
Aragon Twin Under Sink Water Filter – Rain & Bore Guard

The system requires 1 of these cartridges to be replaced every 6-12 months depending on usage and water quality.

Protect your system from the heavy sediment found in rain and ground sources. Our commercial-grade 1-Micron Polyspun Pre-Filter physically traps mud, rust, and algae. It is a critical component of a reliable water filter for bore water, ensuring crystal-clear flow and extending the life of your advanced Aragon cartridge.

The system requires 1 of these cartridges to be replaced every 12 months or 7,000 litres,  whichever comes first. 

Standard filters miss dangerous viruses and radioactive elements. The Aragon Bio is certified to eliminate hidden threats. Tested by Independent Scientific Certification Bodies like the Institut Pasteur, it neutralises Rotavirus, Hepatitis A, and Uranium. It is the advanced heart of your rainwater and bore water filter, providing protection far beyond standard carbon blocks.

Natural Scale Protection Without Removing Healthy Minerals

We understand the frustration of dealing with high mineral content in your bore water. That stubborn limescale that crusts over your kettles, taps, and showerheads isn’t just unsightly, it restricts flow and shortens the lifespan of your expensive appliances. These hard, damaging deposits are caused by the accumulation of sticky ‘Calcspar’ crystals.

The Aragon Bio offers a revolutionary solution with its advanced Quasi-Softening effect. Instead of removing beneficial minerals like a traditional softener, it fundamentally changes their physical structure. By transforming jagged, sticky Calcspar into soft, non-stick Aragonite, the filter ensures these minerals flow harmlessly through your water rather than clinging to surfaces. This naturally prevents scale build-up!

Aragon Bio Water structural change

3 Simple Steps to Safer Water with Free Shipping Australia-Wide:

Join our Pure Water Tribe – Choose your custom water filter system and become part of a community that values clean, safe water.

Crafted for you in Sydney – Our team hand-builds your water filter to order and ships it with tracking, so you know its on its way.

Install your water filter simply, turn on your tap and feel at home with others who trust what they drink.

How We Got Here And Why It Matters

We’re a family business built on firsthand experience and a genuine commitment to better wellbeing through clean water. With over 40 years of combined expertise and nearly a decade in business, we’ve helped thousands of families choose the right water filter system. We offer clear, honest advice and products we truly stand behind and use ourselves.

One Tap, Zero Extra Holes

Your system includes a standard filter tap. If you prefer to avoid drilling an extra hole, you can choose one of these 3-way mixer upgrades.
All our under sink water filter taps include a base plate and connection fittings.
* PLEASE NOTE: the width (W) refers to the dimension from the centre line of the tap body to the centre of the spout.

Side Lever High Loop 3-Way Mixer Chrome

The Side Lever High Loop 3-Way Mixer in Chrome features a sleek  design, providing hot, cold, and filtered water from a single tap.

203mm W x 365mm H

Side Lever Long Reach 3-Way Mixer Chrome

The Side Lever Long Reach Mixer Tap features a simple yet elegant design, providing hot, cold, and filtered water from a single tap.

195mm W x 325mm H

Stainless Steel 3 Way High Loop Matte Black Mixer Tap

The Stainless Steel 3 Way Mixer Tap with high loop in a matte black finish, providing hot, cold and filtered water from a single tap.

225mm W x 400mm H

Designed to Be Straightforward - With Support When You Want It

Our systems are designed for people who want to create a safe home without overcomplicating things. Everything is thoughtfully built so installation is logical and achievable. You can choose to connect the system yourself or have your local plumber handle the install. 

  • We build it. You connect it.
  • Our step-by-step guide, backed by local Australian support, means you’re never left guessing.

Choosing Living Whole means joining a community that values better water, every day.

Living Whole Standard Badge

Component Diagram

Doulton Twin Under Sink Water Filter Ultracarb with fluoride removal component diagram
  • A – Polyspun Pre-Filter 
  • B – Aragon Bio 
  • 1 – Housing Sump
  • 2 – Housing Cap
  • 3 – Stainless Steel Bracket
  • 4 – Pressure Limiting Valve (PLV)
  • 5 – John Guest Elbow (with red clips)
  • 6 – Brass Nipple
Doulton Twin and Triple Undersink Water Filter Installation Diagram

Additional information

Weight 2 kg
Dimensions 33 × 32 × 13 cm
Choose Size:

9 Inch, 10 Inch

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