Sediment filtration
Catches suspended particles such as dirt and sand from the incoming water.
4 Stage Alkaline Reverse Osmosis System
Under-sink water filtration
4 Stage Reverse Osmosis with Alkaline.
An under-sink reverse osmosis system with an alkaline remineraliser, storage tank and dedicated drinking-water tap.
- Under-sink reverse osmosis
- Alkaline mineral finishing
- Dedicated filtered-water tap
Filtration at a glance
4 stage RO filtration
Sediment and carbon pre-filtration, a reverse osmosis membrane and an alkaline remineraliser work together before water reaches your dedicated drinking-water tap.
Taste and odour
- Unwanted tastes
- Unwanted odours
Sediment and particles
- Sediment
- Dirt and rust
Carbon pre-treatment
- Chlorine reduction
- Preparation before the membrane
Reverse osmosis membrane
- RO membrane filtration
- Selected dissolved substances
Final treatment
- Alkaline mineral media
- Selected minerals added back
For a specific contaminant, ask for the supplied model’s performance data and rated capacity. Results depend on the system, incoming water and maintenance.
How it works
Product configuration
Follow the 4 filtration stages in order. The storage tank holds the RO water before the finishing treatment and dedicated tap.
4 Stage RO with Alkaline · stage order
- 1Sediment
- 2Carbon
- 3RO membrane
- 4Alkaline
Cold supply → sediment and carbon pre-filters → RO membrane → storage tank → alkaline remineraliser → drinking-water tap
The membrane also sends a separate concentrated water stream to the drain. The numbered stages match the descriptions below.
Carbon filtration
Reduces chlorine before the water reaches the reverse osmosis membrane.
Reverse osmosis membrane
Filters selected dissolved substances. Ask our team for performance data for the supplied model.
Alkaline remineralisation
The finishing cartridge passes the filtered water through mineral media.
Your questions, answered.
Ask our team about the system and installation.
What does the alkaline stage do?
It adds selected minerals back into the filtered water. The amount depends on the water entering the cartridge.
How is it installed?
The system sits beneath the kitchen sink. Call our team and we’ll ask a few questions about your setup to work out what installation involves.
When do the filters need replacing?
Replacement intervals depend on the cartridge, water quality and use. Contact our servicing team for the schedule for your system.