For most Australian homes on municipal water, a carbon under-sink filter handles taste and chlorine at the kitchen tap for a reasonable price. Choose a jug or benchtop if you rent, a whole-home system if you want every tap covered, and reverse osmosis if you need to remove fluoride, PFAS or dissolved solids. The “best” is whichever matches your water and your home — this guide narrows it down.
Start here: what are you trying to fix?
Every “best water filter” list that hands you one universal answer is skipping the only question that matters: what do you actually need to remove, and where? A filter that’s perfect for a renter wanting nicer-tasting water is the wrong buy for someone protecting a whole house from scale. So rather than crown a single winner, this guide sorts the options two ways — by your situation, and by what’s in your water — and sends you to our independently-scored picks for each. If you’re not sure what’s in your water, our water quality lookup is the place to begin, and the Find My Filter quiz turns a few answers into a shortlist.
Best filter by situation
The single biggest factor is where you want filtered water and whether you can plumb it in:
| Your situation | Best filter type | Where to start |
|---|---|---|
| Renting, want better-tasting water | Jug or benchtop (no plumbing) | Best water filter jugs |
| Own your home, want filtered drinking water | Under-sink system | Best under-sink filters |
| Want filtered water at every tap | Whole-home system | Best whole-home filters |
| Limited bench space, no plumbing changes | Countertop system | Best countertop filters |
| Want the most thorough filtration | Reverse osmosis (RO) | How RO works |
Best filter by what’s in your water
The second factor is what you’re removing. Different contaminants need genuinely different technology — carbon can’t remove fluoride, and a softener doesn’t touch taste. Match the problem to the method:
| What’s in your water | What you need | Guide |
|---|---|---|
| Hard water / scale | TAC conditioner or softener | Hard water filters |
| Chlorine taste | Any activated carbon filter | Filter types |
| Chloramine | Catalytic carbon specifically | Chloramine filters |
| Fluoride | Reverse osmosis or activated alumina | Fluoride removal |
| PFAS | Certified carbon or RO | PFAS filters |
| Not sure what’s in your water | Check your supply first | Water quality lookup |
Not sure which apply to you? Your water utility’s data tells you — look up your city and suburb in our water quality tool.
Our top-scoring suppliers
Across the 36 suppliers we’ve scored on 10 criteria — with no affiliate links and no paid placements — these rate highest overall. Scores reflect certification, transparency, filter lock-in, pricing and support, not popularity.
| Supplier | FilterOut score | State | Review |
|---|---|---|---|
| Puretec Water Filtration | 8.6 | VIC | Read review |
| Cloudtap | 8.3 | WA | Read review |
| Shield Water Filter | 8.3 | QLD | Read review |
| AquaCo Water Filters | 8.2 | WA | Read review |
| Aquasana Australia | 8.1 | NSW | Read review |
See how every supplier compares, side by side, in our comparison tool or the full supplier directory.
How to choose (without overpaying)
Three habits save the most money and regret. First, test before you buy: your utility’s published water quality report tells you what’s actually in your supply, so you’re not paying to remove things that aren’t there. Second, ignore stage-count marketing: “7-stage” isn’t automatically better than 3 — what matters is what each stage does, which our spec decoder explains plainly. Third, check the ongoing cost, not just the sticker: replacement cartridges over five years often cost more than the unit, and proprietary cartridge lock-in is where the real expense hides — our 10-year cost breakdown lays it out.