Australia’s ONLY WaterMark-Certified Tankless Reverse Osmosis Water Filter
The Aquala P500 reverse osmosis water filter is Australia’s only WaterMark-certified tankless RO filter, engineered for families who want safer, fresher drinking water every day.
This advanced RO water filter combines five stages of purification with a high-performance RO membrane, removing up to 99% of fluoride, lead, heavy metals, bacteria, and chlorine. The integrated alkaline filter restores essential minerals, delivering crisp, great-tasting water straight from your tap.
Designed as an under-sink reverse osmosis filter, the P500’s tankless system eliminates stagnant water, saves space in your kitchen, and ensures every glass is clean and fresh. Trusted since 1998, MDC sets the benchmark for reverse osmosis water filter Australia solutions.
Why a Tankless RO Filter Outperforms Traditional Systems
A raditional reverse osmosis filter store water in a tank, where it can sit stagnant and take up valuable space. The Aquala P500 tankless reverse osmosis water filter delivers fresh, purified water on demand with a direct flow-through design, no tank, no waiting, just continuous clean water.
Our advanced RO filter system eliminates up to 99% of:
- Total dissolved solids (TDS)
- Fluoride & chlorine
- Lead & heavy metals
- Bacteria & viruses
- PFAS “forever chemicals” (PFOA, PFOS)
That means every glass of water is pure, safe, and great-tasting, straight from your tap.

Benchtop Reverse Osmosis System with Instant Hot and Cold Water Dispenser
The Aquala benchtop reverse osmosis water filter gives you pure, safe drinking water without the need for under-sink installation. Compact and portable, this advanced RO water filter connects directly to your tap and delivers the same high-quality purification as a full-size system.
Using a multi-stage reverse osmosis filter with a high-performance RO membrane, it removes fluoride, lead, heavy metals, bacteria, chlorine, and other contaminants. The result is clean, fresh water with every pour.
Designed for apartments, rentals, offices, and small kitchens, our benchtop system is the most convenient reverse osmosis water filter Australia can offer, easy to set up, simple to maintain, and perfect for anyone who wants the benefits of RO filtration.
Quick Change Undersink Reverse Osmosis Water Filters
Frequently Asked Questions about Reverse Osmosis Water Filters








Frequently Asked Questions about Reverse Osmosis Water Filters
Reverse osmosis is a highly effective water purification process utilised by advanced filtration systems. By employing a semipermeable membrane, reverse osmosis filters exert pressure on water, allowing pure water molecules to pass through while blocking impurities, contaminants, and particles. This process ensures the removal of harmful substances such as bacteria, viruses, heavy metals, chlorine, fluoride, pesticides, nitrates, sulfates, and various other contaminants commonly found in tap water.
Yes, reverse osmosis RO water filter is designed to function efficiently with diverse water sources, including municipal water supplies, well water, tank watre and tap water. In general, most standard reverse osmosis systems are designed to handle TDS levels up to 600 ppm.
However, it is crucial to assess the specific impurities present in your water and choose a reverse osmosis system that can adequately address those contaminants
Reverse Osmosis system effectively eliminates around 96% of all dissolved impurities, TDS and salt.
Reverse osmosis water filters excel at removing a wide range of impurities, including but not limited to:
Viruses and Bacteria: polio, rotovirus, norovirus, E. coli, Legionella.
Heavy metals: lead, ferrous iron, arsenic, cadmium, chromium, selenium, mercury
Chemicals: Chlorine, bromine, flouride, iodine, nitrates, sulfates, pharmaceuticals, organic acids, proteins.
Contaminants: Sediment, rust, dirt, bad taste, and odours.
Others: (VOCs), PCBs, BPA, and many other contaminants.
While reverse osmosis filters are highly efficient at eliminating contaminants, they also might remove beneficial minerals such as calcium and magnesium from water. However, advanced reverse osmosis systems often incorporate additional stages, such as remineralisation, to reintroduce essential minerals into the purified water, ensuring a more balanced and healthier drinking water experience.
Yes, reverse osmosis systems produce both purified water and waste water. The ratio varies depending on the system, but it’s typically around 3:1 or 4:1 (waste water to purified water). However we supply
modern RO systems which designed to be more water-efficient and reduce waste, it’s up to 1:3 (waste water to purified water)
Yes, many reverse osmosis systems are designed for DIY installation. Our RO systems are DIY, easy to install and come with detailed installation instructions, reverse osmosis filtre installation videos and all the
necessary components. However, if you’re not comfortable with plumbing or have specific concerns, it’s advisable to hire a professional plumber or handyman to ensure proper installation.
1. Standard Faucets: These are basic faucets that come with a separate handle for filtered RO water, Our filtered water taps are available in many finishes and colours, See our options
2. Three Way Mixer Taps: These faucets have two handles—one for hot and
cold water, and another dedicated handle for filtered water. They eliminate the need for a separate filtered water faucet, See our options
Most advanced reverse osmosis systems require a power source to operate. The power is typically used to drive the water through the membrane, which is a crucial part of the reverse osmosis process. Additionally, some systems may have additional components such as pumps, TDS meter, lifespan indicators or electric valves that also require power.
However,there are some non-electric reverse osmosis systems available that do
not rely on electricity, they run on the water pressure (more than 40 psi).