Higher-level filtration
Designed to reduce dissolved solids, trace chemicals and selected heavy metals beyond standard carbon filtration.
Why customers choose it

Product benefits
Match the product or service to your kitchen, workplace and existing equipment. Clear package details help you choose the right next step.
Designed to reduce dissolved solids, trace chemicals and selected heavy metals beyond standard carbon filtration.
Consistently clean, neutral taste: no chlorine aftertaste, no mineral edge, every pour.
No storage vessel required. A slim unit that fits neatly under your sink.
An under-sink reverse osmosis system with an integrated pump, without a separate storage tank.
Five filtration stages are combined into three cartridges. Stages describe the filtration steps; they are not the number of separate cartridges.
One kitchen mixer for normal hot water, normal cold water and filtered drinking water. Check compatibility with your existing sink and plumbing.
Send us photos of your sink, tap and the inside of your cupboard, plus the available measurements. We can help you check the layout before you order.
Check space for the unit, pipework and cartridge removal. Ask our team for the system dimensions and required clearances for your installation.
The 3-way mixer must suit your sink or benchtop and existing plumbing. Confirm the mounting requirements and incoming water pressure with your installer.
Check power access for the integrated pump and the route for RO drain water. Your installer should assess the site before confirming the installation.
Ask Purest to check your setup
RO cartridges and the membrane need replacement at the intervals specified for your system. Water quality and usage affect servicing needs. Ask us to confirm the correct parts, replacement schedule and current service cost before ordering replacements.
Get help with servicingA 3-way tap with combined carbon and sediment filtration for everyday filtered drinking water. This is a different filtration method from RO.
View productChoose a chiller system if chilled filtered drinking water is your priority. The Reverse Osmosis System on this page does not chill water.
View productYes. The system comes with a 3-way mixer tap for normal hot water, normal cold water and filtered drinking water. Confirm the tap mounting and plumbing fit before ordering.
Yes. It uses an integrated pump and does not require a separate drinking-water storage tank. Five filtration stages are combined into three cartridges, so five stages does not mean five separate cartridges.
No. This RO system filters water without chilling or heating it. The hot and cold functions of the 3-way mixer use your existing household water supply.
Installation is optional and charged separately. Review the current installation option beside Add to cart, or ask Purest for a quote for your postcode and site. You can also buy the system without installation.
This system has an integrated pump, so power access needs to be checked. Reverse osmosis also produces a separate stream of drain water. Ask us for the model’s operating requirements and water-use information when planning your installation.
Ask us for the performance information for this model before choosing it for a specific contaminant such as fluoride or PFAS. The filtration technology alone does not establish the tested reduction level of an individual system.
Follow the replacement schedule for the cartridges and membrane fitted to this system. The intervals can differ and depend on water quality and usage. Contact our team to confirm the correct replacements, timing and current cost.
The system and installation by Purest Solutions carry a 3-year warranty. Replacement filters are excluded from this 3-year warranty. Ask us for the full warranty terms; replacement filters and routine servicing are separate from the initial system purchase.
Ready when you are
Choose your configuration above and get 3-stage reverse osmosis filtration installed discreetly under your sink. Professional Australia-wide installation is available from $200. Prefer everyday carbon filtration instead? Compare the filtered tap system, or see filter servicing plans.