Aqua One Australia. Supply and service of drinking water filter systems, water coolers and bubblers since 1991. We know what we are talking about. Call (07) 3395 7122

Get Filtered!

680 Wynnum Rd,
Morningside, Brisbane, QLD

QRO4 Undersink Reverse Osmosis

QRO4 Undersink Reverse Osmosis


Add a Pi Vitality and save 20% 

Pure water has never been more compact.


Add a Pi Vitality and save 20%

Pure water has never bean more compact, this state of the art reverse osmosis system, is easy to maintain and economical on space. Quick Change Reverse Osmosis System offers a compact design, with easy maintenance and hygienic twist-off filtration cartridges. Of all the methods to have pure drinking water for domestic use, the process of reverse osmosis is the most advanced, economical and effective and is easy to maintain and won't take up all the room under your sink.


4-Stage filtration process

Stage 1 - Sediment / pre-filter
Mechanical filtration.

Stage 2 - Carbon pre-filter
Membrane protection from chlorine.

Stage 3 - Ultrafine TFC RO membrane
High performance 140 litres per day. Pore size - 0.0005 microns.

Stage 4 - Carbon polishing post filter
Provides superb tasting water.

You can a Pi Vitality + alkaliser and enjoy not only pure water but also pure alkaline water.

Stage 5 - Pi Vitaliy + alkaliser filter
The Pi Vitality + alkaliser filter effectively raises pH levels as well as producing antioxidant and oxygenating qualities. The filter also emits far-infrared rays which result in shorter cluster chains in the water molecules - increasing the bio-available response and oxygen absorption in the body.


The AQRO4 Quick Change Reverse Osmosis System is the #1 choice for the discerning consumer who wants the very best product available. Ideal for allergy sufferers.

Reverse Osmosis by nature of the process makes the water acidic, this is the same for all reverse omosis systems. If you know and want the benefits of Alkaline Water. See information on the Pi Vitality + Alkalising filter to see the benefits of drinking neutral and alkaline water.

 QRO4000 Undersink Reverse Osmosis

Tank Brochure

Add an Alkalising Filter


Dimensions (tank) 38W x 23D cm (8 litre)
Dimensions (system) 32W x 42H x 11D cm
Filter output 200 litres per day (@ 60 psi) 77 °F
Micron rating 0.0005 micron
Warranty 5 years (excludes filter)

Package Contents

5 stage Reverse Osmosis System includes housing, filters, membrane all assembled and tested. All legally required plumbing parts including tee piece, isolation valve, pressure limiting, non return, anti hammer valve. Faucet, drain clamp and hose.


Of all the accessories we supply, our latest addition is the pH Testing Kit. To complement our new range of Alkaliser Filter Systems, easy step by step use of this kit can identify the precise pH level of your drinking water supply. You may be surprised with the results!

More Images

Customer Reviews