Save up to $70 — now on

Purifier $179 (was $249) · Shower filter $149 (was $199) · Cartridge subscription $99 (save $30) · Free express shipping

Three OzFlow replacement cartridges with fine mesh screens, white collars and black sealing o-rings, beside a plain kraft cartonA new cartridge next to a used, sediment-clogged cartridgeCustomer photo of three cartridges unboxed from their individual kraft cartonsCustomer holding an OzFlow mesh cartridge fresh out of the box
Subscription

OzFlow Replacement Cartridges — 3 Month Supply

4.9612 reviews· 5,600+ sold

Three cartridges. One per month. Delivered before you run out.

Choose your plan
  • Genuine 5-stage cartridges — an exact fit for the OzFlow Water Purifier System
  • Change once a month for consistently clean, great-tasting water
  • Free express shipping Australia-wide on every subscription box
  • Pause, skip or cancel in two clicks. No lock-in contract.
  • Recyclable housing — send your old cartridges back to us free

Dispatches in 1–2 business days · delivery 7–14 business days

Free express shipping
60-night guarantee
2-year warranty
The detail

What it does, in plain English

A filter only works while the media is fresh. Each OzFlow cartridge is rated for roughly 2,000 litres, which for the average Australian household is about one month. Our subscription sends three genuine cartridges every quarter — free shipping, cancel or skip anytime, and $30 cheaper than buying them one at a time.

Included
3 × genuine OzFlow 5-stage cartridges
Change interval
Once per month
Capacity
Approx. 2,000 L per cartridge
Compatible with
OzFlow Water Purifier System (all versions)
Delivery
Every 3 months, free express post
Commitment
None — skip or cancel anytime

How the filtration works

1

Why monthly matters

Spent carbon stops adsorbing and can release trapped contaminants back into your water. A fresh cartridge each month keeps performance at 100%.

2

Never think about it again

We time deliveries to land a week before your third cartridge expires, so you always have one in the cupboard.

In the press
  • OzFlow has introduced a genuinely new approach to cleaner drinking water — as Australian households rethink how they filter at home.

    Australian Financial Review

    Jan 2026

  • An advanced multi-stage cartridge built to tackle PFAS — reducing forever chemicals without stripping minerals.

    The Sydney Morning Herald

    Feb 2026

  • A rare case of a filter brand publishing its own lab results in full, contaminant by contaminant.

    Choice Australia

    Mar 2026

  • Targets PFAS, fluoride, lead, microplastics and 200+ other contaminants

  • Water that tastes clean, crisp and refreshing — from the very first glass

  • 30 second installation on 99% of Australian taps and shower fittings

  • Rigorously and transparently tested to NSF/ANSI protocols

Testimonials

What customers say about the Replacement Cartridges

Unedited photos and words from verified Australian buyers. We publish the four-star reviews too.
4.9 · ExcellentBased on 612 reviews
DRDave R.AU · Adelaide, SA

Look at what came out of our water in one month

Pulled the first cartridge after a month and honestly it was confronting — the mesh had gone from bright silver to rusty brown. That is what we were drinking before. The subscription means I never have to think about ordering again.

Customer photo from Dave R.Verified customer photo
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SDSarah D.AU · Sunshine Coast, QLD

Subscription timing is spot on

Cartridges arrive about a week before I need them, every quarter, each one sealed in its own little box so nothing gets knocked about. Swapping one takes ten seconds. Cancelled a different service to pay for this and have no regrets.

Customer photo from Sarah D.Verified customer photo
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ARAmir R.AU · Blacktown, NSW

Arrived well packaged and well protected

Ordered the 3-pack and every cartridge came in its own box inside the satchel, not a mark on any of them. Build quality is better than the generic ones I was using — the mesh feels solid and the thread seated first go. Recommend it to everyone.

Customer photo from Amir R.Verified customer photo
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RHRachel H.AU · Ballarat, VIC

Three months sorted in one delivery

Unpacked all three on the kitchen table and popped them straight in the cupboard. Genuine fit, no fiddling, and the flow came back to full strength the moment I swapped the old one out. The quarterly price is fair for what it is.

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FAQ

Questions, answered

Still unsure? Our support team replies to every email within one business day.
Talk to us

No. Every OzFlow product is designed for tool-free installation. The Water Purifier System uses a push-fit tap adaptor and the Fresh shower filter screws straight onto a standard Australian thread. Most customers are up and running in under five minutes.

Change your drinking water cartridge once a month for peak performance. Our 3-month subscription supply is $99 and arrives before you run out, so you never drink through a spent filter.

No. The 0.01 micron membrane blocks contaminants by size while the mineral stage keeps calcium and magnesium in the water. That is why OzFlow water tastes fuller than reverse-osmosis or distilled water.

Use it for 60 nights. If you are not convinced, email us and we will refund you in full — you do not need to send the unit back in original packaging.

Orders are dispatched in 1–2 business days with free express shipping and a tracking number emailed to you. Delivery typically takes 7–14 business days.

Keep going

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