Rainwater Purifier | Remineralising Ultra Filtration Water Filter
Advanced filtration for self-sufficient & rainwater homes.
$1,150.00
Unit price perFREE delivery estimated between March 09 and March 18
The Rainwater Purifier is our advanced drinking water system designed specifically for homes running on rainwater or tank water, including off-grid properties.
It uses a high-flow reverse osmosis (Ultra Filtration) membrane, paired with multi-stage carbon filtration and natural remineralisation, to deliver beautifully clean, mineral-rich water, while remaining compatible with rainwater pumps and variable water pressure.
Rainwater systems require a different approach to filtration. For this reason, this system uses Ultra Filtration (UF) — a high-flow form of reverse osmosis with a larger micron rating than standard RO membranes.
The filtration stages include:
- Sediment filtration
Removes dirt, rust, sand and particulate matter commonly found in rainwater tanks. - Pre-carbon filtration (100% coconut shell carbon)
Reduces chemicals, pesticides, herbicides and organic contaminants. - Ultra Filtration (High-Flow RO Membrane)
A reverse osmosis membrane with a higher micron rating, designed to maintain strong flow when used with rainwater pumps. Effectively removes bacteria, parasites and microorganisms, while allowing consistent pressure. - Post-carbon filtration
Further polishes the water for clarity and taste. - pH+ remineralisation cartridge
Adds natural magnesium, calcium and trace minerals back into the water for balanced hydration and improved taste.
Is this right for your home?
This system is suited for homes that run on tank water.
- High-Flow Reverse Osmosis Filtration (Ultra Filtration): Designed specifically for rainwater and tank water systems, using high-flow reverse osmosis technology with a 0.01 micron membrane to maintain strong water pressure while removing bacteria, parasites and microorganisms, along with sediment, rust, organic matter, pesticides, herbicides and chemical contaminants.
- Naturally Remineralised Water:
Finished with our pH+ remineralisation cartridge, which restores natural and essential minerals such as magnesium, calcium and trace minerals back into the water for balanced hydration, improved taste and a naturally alkaline pH.
- Optimised for Rainwater & Off-Grid Homes: Engineered to work seamlessly with rainwater tank pumps and variable pressure systems. The high-flow UF membrane delivers reliable performance without restricting flow or placing strain on pumps.
- 100% Coconut Shell Carbon Filtration:
Premium coconut shell carbon filters reduce chemicals, pesticides, herbicides and organic compounds, helping protect the membrane and further improve taste and clarity.
- Slim, Space-Saving Design: A slim, modern under-sink system that takes up significantly less space than traditional filtration systems, making it ideal for both rural and residential kitchens.
- Easy Installation & DIY Cartridge Changes: Designed for straightforward installation with quick-change cartridges. Annual servicing can be done easily at home without the need for technician call-outs.
- Improved Hydration: Alkaline water offers twice the hydration of regular water. The PH+ Remineraliser cartridge also includes far infrared ceramic beads, which emit far infrared rays that reduce water molecule clusters, making the water easier for your body to absorb.
- Hydrogen & Antioxidant Rich: Which helps increase energy levels and combat free-radicals in the body.
- Improved Taste: Experience the pure, refreshing taste of filtered water free from unpleasant odours and hardness.
- Health and Wellness: Protect your family from harmful bacteria & parasites and support overall well-being with every sip.
- Clean, Mineral-Rich Water: Enjoy an unlimited supply of alkaline, mineral-rich water that's perfect for both drinking and cooking.
Our cartridges are designed for easy DIY replacement and you can change them yourself with our simple 4 minute instruction video.
The system has 5 filters in total. All filters except the UF Membrane need renewing once a year. These 4 filters are the ones that make up our Standard Service Kit.
The UF Membrane has a longer lifespan and is only replaced once every 2 years.
These time frames can vary depending on your water quality and usage, and if you live in a hard water area you may need to replace them sooner.
We also send you a reminder when your cartridges are due.
The installation process is simple and flexible to suit your needs:
- Use any licensed plumber: Contact your go-to plumber, or reach out to us and we can help connect you with an independent licensed plumber.
- Prefer to do it yourself? The system includes a clear installation manual, and we offer phone support to guide you through it.
Dimensions: 335mm (h) x 310mm (w) x 170mm (d)
Tank Dimensions: 335mm (h) x 225mm (w)
Flow Rate: 3.8 litres/min
Micron Rating: 0.01um
pH Reading: >9.5
Water Waste Summary: No waste water produced
Min/Max Pressure: 40 - 100psi
Min/Max Temperature: 5°C - 38°C
What's Included:
- Rainwater Purifier Ultra Filtration System
- Chosen colour faucet
- Ultra Filtration (UF) Membrane (0.01um)
- 1x Antibacterial Sediment Filter (1um)
- 2 x Coconut Carbon Filters (0.5um)
- PH+ Alkaline Mineralising Cartridge
- 4L water storage tank
- Insallation manual
- Installation kit, including:
- Leak detector
- Feed water adapter
- Drain clamp
- 3 metres of 1/4" pipe
- Pressure limiting valve
- Tube cutting tool
- Fittings
$1,150.00
Unit price perOUR DIFFERENCE
Purify & Remineralise
Rainwater requires reliable filtration. High-flow reverse osmosis (Ultra Filtration) delivers superior purification for tank water homes, removing bacteria, parasites and contaminants without compromising flow, while the pH+ Remineraliser restores magnesium, calcium and trace minerals. The result is clean, safe water that hydrates, restores, and tastes as good as it feels.
5-minute filter change & no call-out fees.
Designed with rural and off-grid living in mind. All cartridges are quick-change and DIY, allowing you to refresh your filters in under 5 minutes. No relying on technician availability or paying call-out fees.
Simple, self-sufficient maintenance that suits life outside the city.
Slim, space-saving design
Bulky filters don't belong in beautiful kitchens. This slim design delivers powerful performance in a fraction of the space. Refined, efficient, and made to fit seamlessly into your home.
FAQs
Yes. This system is specifically designed for homes running on rainwater or tank water, including rural and off-grid properties. It uses high-flow reverse osmosis (Ultra Filtration) technology to deliver clean, safe drinking water while remaining compatible with rainwater pumps and variable pressure systems.
Our Rainwater Purifier uses Ultra Filtration; a high flow form of reverse osmosis, which means it reliably removes contaminants found in rainwater, including:
- Sediments like dirt, dust & rust
- Parasites, bacteria, microorganisms
- Chlorine, Chloramines & THMs
- Pesticides & herbicides
- VOCs
- Microplastics
- Pharmaceuticals
- Organic contaminants
Yes, as long as your tank pump provides a minimum pressure of 40 psi. The system is designed to work reliably with rainwater tank pumps and the variable pressure.
If you’re unsure about your pump pressure, or would like us to double-check your setup, please send us a photo and we can confirm compatibility before you order.
Rainwater systems require strong flow and pump compatibility. For this reason, this system uses a high-flow reverse osmosis membrane with a higher micron rating, rather than a standard RO membrane used for mains water. This allows effective filtration of rainwater while maintaining pressure and performance.
Our cartridges are designed for easy, DIY replacement so you can do it yourself with our easy 4-minute instruction video included with your Service Kit.
Four of the cartridges (Sediment Filter, 2x Carbon Filters & PH+ Alkaline Mineraliser) require renewing annually and the UF Membrane cartridge requires renewing every 2 years but these time frames can vary depending on your water usage and quality.
We send you a free reminder when your cartridges are due for replacement.
Most customers find installation straightforward. The system is designed for easy DIY installation and includes a detailed installation manual. If you prefer, you can also have a plumber install it, and we’re always happy to talk you or your plumber through the process.
Yes. The system can be uninstalled and reinstalled in a new home. If the new home runs on mains water, simply switch the UF Membrane for our RO Membrane to make the system better suited to removal of contaminants in municipal water.
If your home switches between rainwater and mains supply, please contact us before ordering so we can ensure the system is configured correctly for your setup.
Yes. This system is backed by our lifetime warranty, giving you long-term peace of mind.
Yes. After filtration, the water passes through our pH+ remineralisation cartridge, which adds natural magnesium, calcium and trace minerals back into the water for improved taste, balanced hydration and a naturally alkaline pH.
ALL IN ONE 3-WAY FILTER TAP
Experience the convenience and elegance of 3-way faucets. Combining hot and cold tap water, and filtered water all in one spout.
PH+ ALKALINE MINERALISER
THE MINERALISING ELEMENTS
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Magnesium
This naturally alkaline mineral is crucial for over 300 biochemical reactions in the body. It aids in the activation of nerves and muscles, contributes to the proper development of bones, and is crucial for DNA synthesis and energy metabolism.
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Calcium
Vital for maintaining strong bones and teeth, calcium is a key player in your body's overall health. It also plays an essential role in blood clotting, muscle function, and nerve signal transmission.
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Far-Infrared Ceramic Beads
Far infrared energy is extensively used in the Far East because of its therapeutic properties. The far infrared ceramic media emits far infrared rays (FIR) which reduce the clusters in the water molecules – increasing the bio-available response and oxygen absorption in the body.
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100% Coconut Carbon
Enjoy the purity of water filtered through 100% coconut carbon, which excels at removing impurities and odors. This eco-friendly material ensures your water tastes fresh and clean with every sip.




