AQUALA P500 tankless reverse osmosis system, under-sink unit with on-unit TDS display and dedicated filter tap
Benefits of RO Filter
osmosis reverse TDS monitor
AQUALA P500 tankless reverse osmosis system, under-sink unit with on-unit TDS display and dedicated filter tap
Benefits of RO Filter
osmosis reverse TDS monitor
5.0
Rated 5.0 out of 5 stars
67 Reviews

AQUALA P500 Tankless Reverse Osmosis System

Regular price $1,199.00
Sale price $1,199.00 Regular price $1,400.00
Unit price
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AQUALA P500 Tankless Reverse Osmosis System

AQUALA P500 Tankless Reverse Osmosis System

Regular price $1,199.00
Sale price $1,199.00 Regular price $1,400.00
Unit price

Australia's Only WaterMark Certified Tankless RO System

After weeks of worrying about what's in your tap water and researching filtration systems, you're here because you want certainty. Not "probably safe" water. Not guesswork. Just pure water your family can trust.

The P500 is Australia's only WaterMark-certified tankless RO system. No bacterial-risk tanks, 60% less space, and government-backed certification that guarantees it actually works.

99% contaminant removal, 2:1 waste ratio, 30 second filter changes.

You've done the research. Compared the systems. Read reviews at night while everyone's asleep. This is your permission to finally protect your family the way you've wanted to all along.

You're Already Protecting Your Family. Just Do It Better

Right now, you're spending $2,800 a year on bottled water to avoid tap contaminants. But you're trading one problem for another: microplastics.

Every plastic bottle leaches up to 240,000 particles per liter into your family's water. The P500 removes 99.7% of microplastics AND the tap water contaminants you're already worried about.

Better protection. No plastic waste.

Fits Where Traditional RO Systems Can't

Traditional tank based RO systems crowd your cabinet and make you wait. The P500 gives you faster consistent flow (500 GPD vs 50 GPD) in 60% less space and you never wait for a tank to refill.


The freestanding design means no mounting brackets, no drilling into your cabinet. Stand it upright in a standard cabinet or lay it flat for low-clearance spaces. Position it wherever it fits best, then move it if you need to.

From invisible contaminants to complete confidence

Seven stages of filtration remove what matters most: chlorine that affects taste, PFAS and heavy metals that threaten health, and minerals that damage appliances.

The RO membrane captures 99% of contaminants down to 0.0001 microns. Then the alkaline remineralization stage adds calcium and magnesium back, pure water that actually tastes good.

The result? Water your family trusts and chooses. Coffee that tastes right. Kids who drink more water because it doesn't taste like chemicals.

Pure Water, Not Empty Water

Traditional RO removes everything, including beneficial minerals. The P500 adds them back.

The alkaline remineralization stage restores calcium, magnesium, and potassium your body needs, then balances the pH to 7.5-8.5. The result? Water that's pure but not stripped. Clean but not acidic. Healthy and actually tastes good.

No flat, "dead" water. Just crisp, alkaline water your family chooses to drink.

30 Second Filter Changes No Tools No Mess

Twist off, twist on cartridges. 30 seconds to swap. No tools, no call outs required.

Simple schedule: Replace filters at 6 months ($65), 12 months ($75), and 24 months ($195). Annual cost: ~$299 that's $2,500 less than bottled water.

Smart alerts remind you. Filters ship to your door. You never think about it.

Your Way: 30 Minute DIY or Professional Installation

Tap requirement: The P500 requires a dedicated tap. Use the included dual-function tap (28mm hole) or connect to an existing 3-way mixer tap. It cannot connect to standard kitchen taps.


Seven-step installation: mount feed adaptor (3/8" tubing), drill and install faucet (28mm hole), attach drain clamp, connect four water ports, plug in power, flush system

DIY install: 30-45 minutes with wrench and drill. Or hire any plumber ($150-300 typical).

The First And Only

WaterMark Certified

The AQUALA P500 is the first Tankless Alklaine RO of its kind to be certified by the Australian WaterMark certificate, conforming with all Australian laws.

It has also been tested by an independent, third-party laboratory accredited by the National Association of Testing Authorities (NATA) in Australia.

For a closer look at the testing procedures and detailed results, please check out the attached water laboratory test reports.

Source:

5.0
Rated 5.0 out of 5 stars
Based on 67 reviews
Total 5 star reviews: 64 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
Slide 1 selected
67 reviews
  • RM
    Ricardo M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    New P500 install

    Install was straight forward. Filter works well and water taste great. Pump is quiet and plenty of space under the sink.

  • DS
    Dorin S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    So far so good!

    We're quite happy with the cleaner taste in water, you notice the difference straight away. Have recommended to family and friends. Love that we can put it in sideways, so that we don't lose a shelf and doesn't take too much space.

  • AY
    Anne Y.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 week ago
    Very happy

    Drinking my quota of water daily easily without the worry of ingesting all the chemicals.

  • DJ
    Don J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Aquala P500 A very well-designed product. I can recommend it.

    Replacing a two-canister filter with the P500 was easy as I could use the existing tap and pressure reducer and some of the pipe work.

    Benefiting from fluoride free clean water.

  • LV
    Lisa V. D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Highly recommend

    Very happy with the P500 Thankless Reverse Osmosis System and 3 way mixer tap, brushed metal. The decision to purchase this system was made easy with their informative and straight to the point website marketing. Majority of answers to my questions were readily available on there. Just be mindful if you purchase a 3 way mixer, you won't receive the smart tap mixer which is normally included in the purchase of the RO system. Their marking included straight to the point and easy to follow, step by step video instructions for installation. I still need to mount the power cord box and trim the hoses but that will be done in due course when I have the time. I would recommend this system to my friends and family so I highly recommend it for anyone else wanting a tankless RO system. Plus its perfect for compact under sink spaces.

Shipping & Return
Specs

"We offer free shipping on all AQUALA P500 orders, with delivery typically taking 3-7 business days depending on your location. Once your order is placed, you’ll receive a tracking number to monitor your shipment in real-time.

We also want you to feel confident in your purchase, which is why we offer a 14-day satisfaction guarantee. If you’re not completely satisfied with your AQUALA P500, you can return it within 14 days. Simply contact our customer service team to initiate the return process. Please note, the item must be in its original condition and packaging."

– MODEL:  P500.
– Purified Water Flow: 1.3 ltr per minute.
– Filtered Water Flow: 2 ltr per minute.
– Feed Water Temperature:  5 – 38°C.
– Feed Water Pressure:  100 – 400 kPa / 14.5 – 58 psi.
– Feed Water Requirement:  Municipal Tap Water,(Must be used on biologically safe water supply).– Maximum Inlet TDS:  400 mg/L (ppm).
– Power Specifications:  Input 110-240V AC  |  Output  24V DC  |  50/60Hz  |  Australian plug type.
– Rated Power:  60W.
– Rated Current:  2.5A.
– RO System Size (L*W*H):  370 * 142 * 437mm.
–Item Weight:  10.3 Kg.
– Connection:  ½” compression tee.
– Required hole for the tap: 28 mm diameter.
– Warranty: 1 year.

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Frequently Asked Questions

How often do i change the filters?

Can I get a Plumber or Handyman to install it?

How easy is the installation

What happens if there is a water leak?

Can i connect the Aquala P500 to a 3 Way Tap?