Compact Ultra High Purity Under Sink Reverse Osmosis System with Alkaliser – 4 Stage
Price range: $809.00 through $839.00 inc. GST
All you want is peace of mind that your family’s water is pure, in a system that’s simple, effective, and fits even the smallest spaces
- US made filters and 0.0005 micron RO membrane remove fluoride, chlorine, PFAS, bacteria, viruses, microplastics, heavy metals.
- Adds essential minerals back into the water for a balanced taste.
- Includes Leak Stopper & Filter Life Monitor ($99 value) for total peace of mind.
- Includes sleek Metro High Loop chrome filter faucet ($99 value)
- Water source: Townwater (Mains)
- Fits anywhere: true compact design saves precious undersink space (30x18x17cm + tank).
- Features NSF-certified components and is Watermark certified (AS/NZS 3497:1998).
- Hand-built in Sydney with US-made parts. Includes a 5-year housing warranty.
- Average Annual replacement cost: $207–$232, depending on water quality and usage
Description
Specifications
- Water source: Townwater (Mains)
- Filter life Carbon Filters: 6-12 months
- Filter life Membrane: 3-6 years
- Filter life remineraliser: 2 years
- 0.0005 Micron
- Maximum flow rate: 3 litres per minute
- Maximum filter output: 200 litres per day
- Warranty: 5 years (housing)
- Temperature Range: 5°C – 25°C
- Dimensions System: 33 cm (L) x 18 cm (H) x 20 cm (W)
- Dimension 5-litre storage tank: 32 cm (W) x 20 cm (D)
- Metro Tap: 160mm (W) × 250mm (H)
Reach measured from the tap body centre to the spout centre - Watermark Certificate Number 52014
Certified Under Sink Water Filtration
This system meets the WaterMark specification AS/NZS 3497 Drinking water treatment unit – Plumbing requirements.
Certificate Number 52014.
- Aluminium
- Barium
- Cadmium
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Fluoride
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplastic
- Nitrate
- PCB’S
- Pesticides & Herbicides
- PFAS
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
- Aluminium
- Barium
- Cadmium
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Fluoride
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplastic
- Nitrate
- PCB’S
- Pesticides & Herbicides
- PFAS
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
Everything You Want to Know
What's included in the system
This reverse osmosis water filter comes pre-assembled with the first set of cartridges, housing, leak stopper & filter life monitor, tank, tap, hoses, screws, locking clips, and all components required for installation (excluding tools).
How often do I need to change the cartridges and how much do they cost?
Carbon Filters (2x): every 12 months (2x $69)
Membrane: Every 3–6 years – depending on water quality and usage ($149)
Remineraliser: Every 2 years (AlkaHydrate ($89), Or Omnupure Alkaliser ($119)
Is this the right RO system for me?
If you want pure, perfectly balanced drinking water but don’t want to sacrifice all your under-sink space, this Compact 4-Stage is our most popular chouce. It removes the nasties and adds the essential minerals back in.
Live in a high-sediment area like parts of Central QLD, WA or SA? Consider our Ultra High Purity 5-Stage RO System for added protection against fine sediment and longer cartridge life.
What’s the difference between the Alkahydrate and the Omnipure remineraliser?
Choose Omnipure for a 100% USA-made internal filter path, or Alkahydrate for our most popular, cost-effective alkalising option.
Can I use this RO system for tank and bore water?
This system is best suited for town (mains) water. Tank water sources often lack the required water pressure required for RO systems. For tank or bore water, please explore our Rain Water Tank Filter options.
Replacement Filter Cartridges for
Compact UHP Under Sink Reverse Osmosis System with Alkaliser - 4 Stage
We know you want to protect your family from toxins without stripping the water dead. That’s why we don’t compromise on components. Your system is powered by genuine Omnipure filters – manufactured in the USA for over 50 years to deliver consistent, certified purity you can taste.
Effectively reduces PFAS, Chlorine, Chemicals, Taste & Odour. NSF 42 certified. Replace every 12 months or 7,500L Made in USA ($69).
Effectively removes PFAS, fluoride, microplastics, bacteria. Screens to 0.0005 micron. Replace every 3-6 years. Made in USA ($149).
4th Stage AlkaHydrate OR Omnipure Alkalising Cartridge
The Omnipure Alkaliser OR AlkaHydrate Alkaliser replenishes minerals and raise pH levels. Replace every 2 years ($89 / $119).
Purchase the replacement cartridges as a set for a discount.
You just want to trust your tap - even if you don’t have much space
You’ve probably read enough about fluoride, heavy metals and water quality to make your head spin. You shouldn’t need to become a water expert or have a huge kitchen to get highly filtered water for your family.
This compact RO system fits neatly into smaller cupboards, without compromising on filtration.
Know exactly what your filtration system is designed to remove, without having to work it all out yourself.
Fill the kettle, cook dinner and fill your child’s glass knowing you’re using highly filtered water.
Enjoy crisp, remineralised water that tastes fresh and is easy to drink.
A compact reverse osmosis system that delivers highly filtered, remineralised water while quietly fitting into smaller spaces.
3 Simple Steps to Safer Water - with Free Shipping Australia-Wide:
Choose your reverse osmosis system with desired faucet & tank and join our Pure Water Tribe.
Hand-built for you in Sydney and shipped with tracking so you know it’s on the way.
Install, turn on your tap and enjoy clean, ultra-pure water on demand.
How We Got Here And Why It Matters
We founded Living Whole to make clean water simple. After nearly 10 years in business and 30+ years of combined expertise, we’ve helped thousands of Australians find water filters that are proven, dependable, and built for daily life.
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
3-Way Mixer Tap
Designated tap
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 25 × 25 × 42 cm |
| Alkaliser | Alkahydrate (made in Taiwan), Omnipure (made in USA) |
2 reviews for Compact Ultra High Purity Under Sink Reverse Osmosis System with Alkaliser – 4 Stage
Related products
Filteroo® Joey 12L Ceramic Gravity Water Filter with Fluoride Removal
- Ceramic Water Filters, Benchtop Water Filters, Fluoride Water Filters, Gravity Water Filters
- $469.99 inc. GST
- Select options This product has multiple variants. The options may be chosen on the product page
-
Sale!
Waters Co BIO 500 Benchtop Water Filter
- Benchtop Water Filters, Fluoride Water Filters, Gravity Water Filters, PFAS Water Filters
- Original price was: $849.00.$729.00Current price is: $729.00. inc. GST
- Add to cart
-
Sale!
Tas –
Quality filter and tap-ware with prompt. friendly pre and after sales service! 🙂
Living Whole –
Thank you so much for your kind words! We really appreciate your support and are glad you’re happy with both the products and our service 🙂
Kristina –
I love my 4-Stage Compact RO with Alkaliser! It was a bit of an investment but absolutely worth it. The water tastes soft and fresh, and I feel confident knowing it’s filtered to such a high standard.
Living Whole –
Thank you so much for your review, Kristina! We’re thrilled to hear you’re happy with your new RO system 😊.