Hydrate Filters RO Mineral+ Reverse Osmosis Underbench Filter - Fluoride & Nitrate Removal NZ

Deeply purified, mineralised drinking water from your kitchen tap — without a holding tank or constant power supply. The Hydrate Filters RO Mineral+ is a 3-stage reverse osmosis system that removes up to 99% of dissolved solids, then adds essential minerals back and raises pH to alkaline.

Certified to NSF/ANSI standards. The carbon block carries IAPMO R&T certification to NSF/ANSI 42 and 53. The RO membrane is NSF 58 and 61 certified. CE, RoHS, and EMC certified. Lab tested on actual NZ tap water by Hill Labs.

The built-in smart display monitors water quality and filter life in real time — powered by a rechargeable USB-C battery with a single charge lasting around 8 months. No holding tank. No constant power connection.

Backed by a 2-year manufacturer warranty and 30-day money back guarantee.

Key specs at a glance

• Filtration: 3-stage reverse osmosis with mineral enhancement
• Stage 1: Sediment + activated carbon pre-filter (1000 iodine value)
• Stage 2: 0.0001 micron RO membrane (800 GPD)
• Stage 3: Natural mineral stone remineralisation + carbon polish
• Contaminant reduction: Up to 99% of dissolved solids
• Certified reduction: Fluoride, nitrates, heavy metals, chlorine, E.coli, bacteria, viruses, PFAS, Giardia, pharmaceuticals, micro and nano plastics, cysts
• Remineralisation: Yes — raises pH to alkaline, no separate remineralisation required
• Flow rate: 1.4–2.4 LPM (dependent on water pressure and temperature)
• Water efficiency: Approx. 4:1 water-to-waste ratio
• Power: 4500mAh rechargeable battery (USB-C), ~8 months per charge
• Monitoring: Built-in TDS and filter life display with automatic flushing
• Tap included: Yes (silver or black)
• System dimensions: 36.1cm (W) x 48.8cm (H) x 13.1cm (D)
• Stage 1 & 3 filter life: 12 months
• Stage 2 (RO membrane) life: 24 months
• Certifications: CE, RoHS, EMC; NSF/ANSI 42 & 53 (carbon block, IAPMO R&T); NSF 58 & 61 (RO membrane)
• Warranty: 2 years
• Money back guarantee: 30 days

Why Kiwi homeowners choose the RO Mineral+

• Point-of-use treatment — certified purified water at the kitchen tap without filtering the whole house
• Up to 99% dissolved solids removal — including fluoride, nitrates, PFAS, heavy metals, E.coli, and more
• NSF-certified filtration — carbon block certified to NSF/ANSI 42 & 53; RO membrane certified to NSF 58 & 61
• Remineralisation stage included — essential minerals restored and pH raised to alkaline after filtration
• No holding tank, no constant power supply — runs on a rechargeable battery lasting ~8 months per charge
• Real-time smart display — monitors water quality (TDS) and filter life so you always know it's performing
• Automatic flushing — the system maintains the RO membrane automatically
• Eco-friendly cartridge design — replace the internal filter only, the outer casing is reused
• Dedicated stainless steel tap included — silver or black to suit your kitchen
• Fixed-rate installation available in Canterbury and Auckland
• 2-year warranty and 30-day money back guarantee

How it works

Stage 1 — Sediment and Carbon Pre-Filter

Water first passes through sediment filtration to remove particles, rust, and silt, then through an activated carbon stage (1000 iodine value) to reduce chlorine, chemicals, taste, and odour. This stage protects the RO membrane downstream and improves taste immediately.

Stage 2 — Reverse Osmosis Membrane (0.0001 micron, 800 GPD)

Water is forced through a semi-permeable membrane at 0.0001 micron. At this scale, dissolved contaminants — including fluoride, nitrates, heavy metals, bacteria, viruses, PFAS, pharmaceuticals, and cysts — are removed. NSF 58 and 61 certified.

Stage 3 — Mineral Enhancement and Carbon Polish

Water passes through a natural mineral stone stage that reintroduces essential minerals, raises the pH to alkaline, and improves taste and mouthfeel. A final carbon polish removes any remaining taste or odour before the water reaches your tap.

Smart Monitoring

The built-in display tracks TDS (total dissolved solids) and filter life in real time. The system also performs automatic flushing to maintain RO membrane performance. The display is powered by a 4500mAh rechargeable battery — charge via USB-C approximately once every 8 months.

The system produces approximately 4 litres of wastewater for every 1 litre of filtered water — this is standard for RO technology.

Why remineralisation matters

Reverse osmosis removes up to 99% of dissolved solids — including both harmful contaminants and beneficial minerals like calcium and magnesium. The RO Mineral+ addresses this with a post-filtration stage containing 100% natural minerals that reintroduces beneficial trace elements, raises pH to alkaline, and improves the natural taste and mouthfeel of the water. No separate remineralisation step or product is required.

Certifications

Carbon block: Certified by IAPMO R&T to NSF/ANSI 42 (aesthetic effects — taste, odour, chlorine) and NSF/ANSI 53 (health effects — specific contaminant reduction).

RO membrane: NSF 58 certified (RO membrane systems — contaminant reduction) and NSF 61 certified (drinking water system components — material safety).

System: CE, RoHS, EMC certified.

Maintenance

• Stage 1 and Stage 3 filters: replace every 12 months
• Stage 2 RO membrane: replace every 24 months

Quick-change cartridges — replace the internal filter only, the outer casing is reused. Smart alerts notify you when it's time. An optional subscription delivers replacement filters automatically.

Technical specifications

Filtration type	3-stage reverse osmosis with mineral enhancement
Stage 1	Sediment + activated carbon (1000 iodine value)
Stage 2	0.0001 micron RO membrane (800 GPD)
Stage 3	Natural mineral stone remineralisation + carbon polish
Contaminant reduction	Up to 99% dissolved solids
Flow rate	1.4–2.4 LPM
Water efficiency	Approx. 4:1 water-to-waste ratio
RO membrane	800 GPD high-output
Power	4500mAh rechargeable battery, USB-C, ~8 months per charge
Monitoring	Built-in TDS display + filter life monitoring + auto-flush
Tap	Stainless steel, silver or black
System dimensions	36.1cm (W) x 48.8cm (H) x 13.1cm (D)
Stage 1 & 3 filter life	12 months
Stage 2 RO membrane life	24 months
Certifications	CE, RoHS, EMC; NSF/ANSI 42 & 53 (carbon block, IAPMO R&T); NSF 58 & 61 (RO membrane)
Warranty	2 years
Money back guarantee	30 days

Frequently asked questions

Is the RO Mineral+ right for my home?

It's designed for anyone who wants deeply purified, mineralised drinking water at the kitchen tap — particularly homes on mains supplies where fluoride, nitrates, or PFAS are a concern. It treats water at the point of use, so you're only purifying what you drink and cook with rather than the whole house. If you want filtered water at every tap, a whole-house system is the better fit — get in touch and we'll help you choose.

What contaminants does it remove?

The RO membrane is certified to NSF 58 and removes up to 99% of dissolved solids. This includes fluoride, nitrates, heavy metals, PFAS, E.coli, bacteria, viruses, Giardia, pharmaceuticals, micro and nano plastics, and cysts.

Why does it need remineralisation?

Reverse osmosis removes nearly everything from the water — including beneficial minerals like calcium and magnesium. Without remineralisation, RO water can taste flat and is demineralised. The Stage 3 natural mineral stone restores essential minerals and raises pH to alkaline, so the water tastes balanced and doesn't require any additional treatment.

What is the 4:1 wastewater ratio?

For every litre of filtered water the system produces, approximately 4 litres of water go to drain as wastewater. This is standard for RO technology. The system includes automatic flushing which maintains membrane performance but also contributes to wastewater. For most households this is an acceptable trade-off for the level of purification RO delivers.

Does it need a constant power supply?

No — the smart display and automatic flushing are powered by a 4500mAh internal battery charged via USB-C. A single charge lasts approximately 8 months. The filtration itself runs on mains water pressure — no pump or power connection required for water flow.

Does it need to be installed by a plumber?

The system connects to your cold water supply under the sink and the tap requires installation through your benchtop. For most customers a plumber is the recommended option. Fixed-rate installation is available in Canterbury and Auckland — get in touch for details. If you're confident with this style of plumbing, the installation is straightforward.

How is RO different from the UFX3 ultra-filtration system?

The UFX3 uses ultra-filtration (0.01 micron) which removes bacteria, cysts, and particulates while retaining minerals. The RO Mineral+ uses reverse osmosis (0.0001 micron) which removes virtually everything including dissolved solids like fluoride and nitrates — then adds minerals back via the remineralisation stage. RO is the right choice when fluoride, nitrate, or dissolved solid reduction is the priority.

What certifications does it carry?

The carbon block is certified by IAPMO R&T to NSF/ANSI 42 and 53. The RO membrane carries NSF 58 and 61 certification. The system is CE, RoHS, and EMC certified.

What warranty and returns policy apply?

2-year manufacturer warranty covering manufacturing and material faults under normal use. 30-day money back guarantee — return within 30 days for a full refund if you're not satisfied.