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7-Stage Alkaline & Hydrogen-Rich RO Water Filter — Sydney

Pure Premium
7-Stage RO Filter

The ultimate under-sink water experience. Seven stages of precision filtration remove 99%+ of dissolved contaminants, then transform your water with high-alkaline mineralisation, molecular hydrogen enrichment and far infrared ceramic treatment. Supplied and installed by Jean-Paul, Sydney's licensed water filter plumber.

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Installation Included Lifetime Workmanship Guarantee 12-Month System Warranty Licensed Plumber 461511C WaterMark Certified
Call 0430 546 749 Get a Fixed Quote
Supply + professional installation included
Lifetime workmanship guarantee
12-month system warranty
Licensed plumber Lic. 461511C
WaterMark Certified
Pure Premium 7-stage alkaline hydrogen-rich reverse osmosis water filter — GT1-26-7
Model GT1-26-7 · 7-Stage RO + Alkaline + Hydrogen + FIR

Pure Premium Water Filter

Seven stages of treatment deliver not just pure water, but actively enhanced water. High-alkaline pH, antioxidant molecular hydrogen, far infrared ceramic treatment — the most comprehensive under-sink filtration experience available.

$1,180
Supply + professional installation. Fixed price — no call-out fees.
Chrome filter tap included
12L tank included
~$220/yr DIY
  • 7 stages — RO purity + alkaline + magnesium + hydrogen-rich + FIR
  • pH 8.5–10 high-alkaline output — significantly above standard RO
  • Molecular hydrogen (H2) enrichment — antioxidant, anti-inflammatory
  • Far infrared ceramic stage for enhanced water structure and taste
  • Removes up to 99% of TDS including fluoride, heavy metals and PFAS
  • WaterMark certified — AS/NZS 3497 compliant
  • 12L pressurised storage tank — water on demand
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Tap Options

Dedicated chrome filter tap installed as standard. A 3-way mixer tap upgrade combines filtered and mains water in one premium fixture — available on request.

About The System

The Most Advanced Under-Sink Water Filter Available in Sydney

The Pure Premium starts with the same RO membrane purity as the Pure Plus+ — removing up to 99% of dissolved contaminants including fluoride, chloramine, heavy metals, PFAS and microplastics. But it doesn't stop at filtration. Four additional post-treatment stages actively transform the water into something significantly more than just clean.

The high-alkaline magnesium stage infuses dissolved molecular hydrogen (H2) — a potent antioxidant with researched anti-inflammatory and cellular energy benefits — while simultaneously raising the pH to 8.5–10 with magnesium and potassium enrichment. The far infrared ceramic stage adds a further dimension, restructuring water molecules for improved cellular absorption. A secondary alkaline post-filter stabilises pH consistency over time, and an activated coconut carbon final stage ensures every glass tastes crisp and clean from the tap.

The result is water that performs at two levels simultaneously: hospital-grade filtration purity at the RO membrane stage, and health-optimised enhancement at the post-treatment stage. This is the system for households that treat water as part of a wellness routine — not just a utility.

Jean-Paul installs every Pure Premium personally across Sydney. Fixed price of $1,180 covers system, 12L tank, chrome filter tap, all fittings, and licensed installation. No extras.

The Benefits of Hydrogen-Rich Water

Molecular hydrogen (H2) is the smallest and most bioavailable antioxidant known. Unlike larger antioxidant molecules, H2 can penetrate cell membranes and the blood-brain barrier to neutralise reactive oxygen species (free radicals) directly at the cellular level. Research published in peer-reviewed journals suggests potential benefits including:

  • Reduction in oxidative stress markers
  • Anti-inflammatory effects (particularly relevant for athletic recovery)
  • Improved mitochondrial function and energy metabolism
  • Neuroprotective properties
  • Enhanced hydration at the cellular level

The Pure Premium generates hydrogen-rich water through its magnesium-media stage — a passive, chemical-free process that reacts with pure RO water to produce dissolved H2 naturally. No electrolysis required, no moving parts, no electricity.

Filter Stage Breakdown

Seven stages work in sequence — four stages of protection and purification, followed by three stages of active water enhancement.

1
5-Micron Sediment Pre-Filter
Sediment, particles, silt
Removes physical particulates from the feed water — sand, silt, rust and suspended solids — protecting the RO membrane and all downstream stages from clogging. Replaced every 6 months.
SedimentParticlesRustMembrane protection
2
CTO Carbon Block Pre-Filter
Chlorine, chloramine, VOCs
Removes free chlorine, chloramine and organic chemical compounds that would otherwise degrade the RO membrane. Also reduces VOCs, herbicides, pesticides and chemical taste and odour.
ChloramineChlorineVOCsMembrane protection
3
75 GPD RO Membrane
0.0001 micron — 99%+ TDS rejection
The core of the system. Rejects up to 99% of dissolved contaminants: fluoride (up to 95%), heavy metals, nitrates, PFAS, bacteria, cysts and microplastics. The membrane lasts 2–3 years.
FluorideHeavy metalsPFASNitratesBacteria
4
High-Alkaline Magnesium & Hydrogen-Rich Stage
pH 8.5–10, molecular hydrogen, antioxidant
The defining stage of the Pure Premium. Passes RO-pure water through magnesium media that infuses dissolved molecular hydrogen (H2) — a potent antioxidant — and raises pH to 8.5–10 with magnesium and potassium mineral enrichment.
Hydrogen H2Alkaline pHMagnesiumAntioxidant
5
Far Infrared Ceramic Stage
Cellular absorption enhancement
Far infrared ceramic media emits FIR energy to restructure water molecules into smaller clusters, believed to improve cellular hydration and absorption. Adds a further dimension to the water enhancement beyond chemistry alone.
Far infraredMicro-clusteringCellular uptake
6
Activated Coconut Carbon Post-Filter
Final taste polish
A high-grade coconut activated carbon inline filter that removes any residual taste or odour from the storage tank, ensuring every glass is crisp and clean. Replaced annually.
TasteOdourPost-tank polish
7
Inline Alkaline Post-Filter
Secondary alkaline stage — final pH stabilisation
A secondary alkaline filter that stabilises and maintains the elevated pH from stage 4, ensuring consistent alkaline output from the filter tap even as the primary stages age between service intervals.
Alkaline stabilitypH maintenancePost-carbon
System Specifications

Technical Specifications

SpecificationValue
System ModelGT1-26-7 (Pure Premium)
Filtration Stages7 (Sediment + CTO Carbon + RO Membrane + H2 Alkaline + FIR Ceramic + Post Carbon + Alkaline)
RO Membrane75 GPD thin-film composite (NSF/ANSI 58 tested)
TDS RejectionUp to 99%
Fluoride ReductionUp to 95%
Output pH8.5–10 (high-alkaline)
Hydrogen EnrichmentYes — dissolved H2 via magnesium media
Far Infrared CeramicYes — post-RO stage
Storage TankApproximately 12L pressurised
Pre-filter Service Interval6–12 months
RO Membrane Service Interval2–3 years
Post-filter Service Interval12 months
WaterMark CertificationAS/NZS 3497
ManufacturerHigh Performance Filtration (HPF)
Annual Service (professional)$475/yr
Annual Service (DIY)~$220/yr
Licensed Plumber

Installed by Jean-Paul

Every system is installed by Jean-Paul Barber — a licensed plumber, not a contractor. Clean work across homes and apartments throughout Sydney.

Fixed Pricing

What You Pay

No call-out fees. No hidden extras. One fixed price covers everything.

SUPPLY + INSTALL
Pure Premium — Installed
$1,180
One fixed price. Everything included.
  • Pure Premium GT1-26-7 system (7 stages)
  • ~12L pressurised storage tank
  • Dedicated chrome filter tap
  • All fittings and connections
  • Licensed installation by Jean-Paul
  • Lifetime workmanship guarantee
Annual Service — Professional
$475/yr
Jean-Paul attends, replaces all filters and checks all fittings.
  • All pre-filters replaced (sediment + carbon)
  • All post-filters replaced (H2, FIR, alkaline, carbon)
  • All connections checked and pressure-tested
  • System flushed and performance confirmed
Annual Service — DIY
~$220/yr
Self-replace cartridges — no specialist tools required for most stages.
  • Standard pre/post filter cartridges
  • No specialist tools for most stages
  • RO membrane swap every 2–3 yrs via service call
  • Lowest ongoing cost for confident DIYers
Common Questions

Frequently Asked Questions

Hydrogen-rich water contains dissolved molecular hydrogen (H2), a potent antioxidant that may help neutralise harmful free radicals. Research suggests potential benefits including reduced oxidative stress, anti-inflammatory properties, improved athletic recovery and enhanced cellular energy. The Pure Premium generates hydrogen-rich water via its magnesium-media stage, which reacts with pure RO water to produce dissolved H2 — raising hydrogen concentration significantly above standard tap water.
Far infrared ceramic (FIR) media emits far infrared rays that interact with water molecules. Proponents claim this improves water absorption at the cellular level and enhances taste and softness. The FIR stage in the Pure Premium follows the hydrogen and alkaline stages, adding a further enhancement layer for those seeking the most comprehensive residential water treatment available.
The Pure Premium is rated to produce water at pH 8.5–10, depending on feed water conditions and filter age. This is achieved through the high-alkaline magnesium stage combined with the inline alkaline post-filter — significantly higher than the 7.5–8.5 output of the Pure Plus+.
Not necessarily in terms of contamination removal — both achieve comparable RO-grade purity at the membrane stage. The additional stages in the 7-stage system enhance the output water beyond filtration with hydrogen enrichment, higher alkalinity and cellular-uptake optimisation. If your goal is maximum contaminant removal, the Pure Plus+ ($840) is the pragmatic choice. If you want health-focused water enhancement, the Pure Premium ($1,180) is the upgrade.
Pre-filters (sediment + carbon) every 6–12 months. RO membrane every 2–3 years. All post-filter stages annually. Jean-Paul offers a professional service including all filter media and labour for $475 per year.
Yes. The RO membrane operates at 0.0001 microns and rejects up to 95% of fluoride — the same as the Pure Plus+ and all RO systems in the range. The number of enhancement stages doesn't affect fluoride rejection, which is handled entirely by the membrane.
Yes. The Pure Premium installs under your kitchen sink like any standard under-sink RO system. No strata approval required in most cases. Jean-Paul has installed in apartments of every size across inner Sydney. Installation takes approximately 2 hours.
Both use RO membrane filtration to remove 99%+ of contaminants. The Pure Plus+ ($840) adds basic alkaline remineralisation (pH 7.5–8.5). The Pure Premium ($1,180) adds a high-alkaline magnesium stage (pH 8.5–10), molecular hydrogen enrichment, far infrared ceramic, and a secondary alkaline post-filter. Choose the Pure Plus+ for filtration + mild alkalinity. Choose the Pure Premium for the full health-enhancement experience.
Compare Systems

Other Water Filter Systems

Browse the full range — every system includes professional installation by Jean-Paul.

Pure Plus+
$840
5-stage RO + alkaline remineralisation. Removes 99%+ of contaminants including fluoride. pH 7.5–8.5. Sydney's most popular RO system.
View Pure Plus+
Pure Luxe
$1,740
5-stage quick-change RO with built-in digital TDS monitor. Shows real-time water quality from the tap. Premium quick-change cartridges — no tools, no mess.
View Pure Luxe
Pure Home
$3,150
Whole-house HPF-3 triple-stage system. Filters every tap, shower and appliance in the home. External/outdoor mount in stainless steel enclosure.
View Pure Home
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Ready to Get Cleaner Water?

Book your installation or get a fixed price quote. Jean-Paul covers greater Sydney — same week appointments available.

0430 546 749
Mon–Sat 7am–6pm · No call-out fee · Fixed price
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