The best water filters in Australia in 2026: Brita Marella XL for most homes

Tap water in every Australian capital is managed to the NHMRC Australian Drinking Water Guidelines, so a filter is for taste or one specific problem. Prices on this page are what we found at Bunnings, Mitre 10, Brita’s own store and Waterdrop Australia on 22 October 2026, in Australian dollars. We can’t show Amazon prices; the Amazon buttons show today’s price.

Questions to ask before buying a water filter in Australia

• What am I trying to fix? Tap water in Australia is managed to national guidelines, so a filter is for taste or one specific problem. Chlorine has an odour threshold of about 0.6 mg/L, and a jug or tap filter handles it.
• Do I want the fluoride out? The guideline limit is 1.5 mg/L. Jugs, tap filters and under-sink carbon don’t remove it. Reverse osmosis does.
• Is my water hard? The national guidelines say hardness above 200 mg/L brings increasing scaling. A filter won’t fix that; a softener will.
• Will a licensed plumber fit it? Only if it’s certified where WaterMark applies. WaterMark says a licensed plumber is not permitted to install a product of a listed type that isn’t certified, even if it was legal to sell. Search the WaterMark register by model before you pay.
• I rent. Can I fit it? In Queensland it’s a breach to attach a fixture without written approval. Victoria has a short list of changes that need no permission, and plumbing isn’t on it, so get your landlord’s agreement in writing first.
• What happens if it fails after the warranty? The ACCC says the consumer guarantee of acceptable quality usually still applies after a warranty expires.

Start with the problem you are trying to fix

Most people buy the wrong filter because they start with the product instead of the water. Australian mains water is treated, so a filter is solving one of a small number of specific problems:

• Chlorine taste or smell. Any activated carbon filter fixes this: a water filter jug, an on-tap unit, a benchtop filter or an under-sink carbon cartridge. If your water utility uses chloramine rather than chlorine (some Queensland and regional supplies do), look for catalytic carbon, which handles chloramine far better than standard carbon.
• Sediment, grit or cloudiness. This is a tank, bore or old-pipes problem. You want a sediment pre-filter (5 micron is typical) ahead of anything else. Stefani’s twin and triple under-sink systems are built for this.
• Fluoride. Carbon does nothing to fluoride. Reverse osmosis is the usual home method. The Waterdrop C1S does it on the bench with no plumber; its fluoride figures are Waterdrop’s own tests.
• Lead or metals from old fittings. Look for a filter certified to NSF/ANSI 53 for lead, on the certifier’s own listing (the IAPMO directory is one), and if it’s plumbed in, on the WaterMark Product Database too. The Philips FastFlow has both. Get the water tested first.
• PFAS concern. Look for PFAS (PFOA and PFOS) on the certifier’s listing, not the box. The FastFlow is certified for it under NSF/ANSI 53. None of our other four picks is.
• Chlorine smell in the shower. A drinking-water filter won’t reach it. A shower filter screws onto the shower arm and reduces chlorine; it won’t soften water or remove fluoride. Bunnings sells them only as Special Orders or through Marketplace sellers (shower filters at Bunnings), and our shower filter guide compares the rest.
• Chilled or hot water on tap, without a plumber. A benchtop or freestanding water dispenser plugs into a power point and holds 5 to 22 litres; its cartridge is a taste filter, not a fluoride one. An instant hot water dispenser replaces the kettle with set temperatures.
• Rainwater or tank water for drinking. Get it tested before you drink it. None of our picks disinfects water, and a jug is not a safety device.

Our picks, and why

The board above lists the picks. In short: renters and anyone trying a filter for the first time should buy the Brita Marella XL jug (our best water filter jugs guide compares it with others) or the Philips On-Tap unit. If you want no plumbing and no cartridges to click in, the Stefani 10 L ceramic benchtop filters by gravity. Home owners who want it plumbed in should get a licensed plumber to fit the Philips FastFlow, which is on the WaterMark register (licence 060212) and certified to NSF/ANSI 53 by IAPMO. A licensed plumber can’t install a filter that isn’t on the WaterMark register, so that rules out most of the cheap under-sink kits sold online. If fluoride is the reason you’re here, the Waterdrop C1S countertop reverse osmosis unit needs no plumbing; the reverse osmosis guide covers under-sink systems. Tank households should read the under-sink guide and pick a twin-stage system with a sediment pre-filter.

What carbon filters actually do

Almost every filter under $200 is an activated carbon filter of some kind. Carbon works by adsorption: chlorine, many organic chemicals and the compounds behind bad taste and odour stick to its surface. What it does not do is remove dissolved minerals, fluoride, salts or nitrates. Carbon block cartridges, which are compressed rather than loose, add mechanical filtration down to 0.5 or 1 micron; only a block certified for cysts under NSF/ANSI 53 has shown that it catches them.

Carbon also wears out silently. A saturated cartridge stops filtering but the water still flows, which is why cartridge-change reminders and rated litre capacities matter more than they sound.

Reverse osmosis, briefly

Reverse osmosis pushes water through a membrane so fine that most dissolved salts, fluoride among them, are left behind. The costs are real. Every RO system sends some water to the drain: Philips’ listing for its 400 GPD station puts tank systems at 25 to 33 percent recovery, so two or three litres go down the drain for every litre you drink, and Waterdrop quotes 2:1 to 3:1 pure to drain for the C1S. RO is slow, needs a tank or a countertop reservoir, and takes out the minerals, which some people find tastes flat. Read the reverse osmosis guide before buying one.

The plumbing rules

If a filter connects to your mains water, it is plumbing work. WaterMark’s consumer guidance says that when a product type is on the WaterMark Schedule of Products but the product isn’t certified, “a licensed plumber is not permitted to install it”. The plumbed-in filters we checked are certified against AS/NZS 3497 or WaterMark’s WMTS-103, and every certified model has a licence number you can check on the WaterMark Product Database. Most of the cheap under-sink kits we checked on Amazon Australia aren’t on it, and then the plumber can’t fit them. Jugs, gravity benchtop units, on-tap units and countertop RO units avoid the issue entirely because nothing is permanently connected.

Running costs matter more than the sticker price

A filter is a subscription. At the prices we found on 22 October 2026, here is what each pick costs to run for a year:

• Brita Marella XL: about $133, at 13 Maxtra Pro cartridges a year and the Bunnings 6-pack price ($61.49).
• Philips On-Tap: about $50 at 2 litres a day, one AWP315 refill ($49.95 at Bunnings, rated 1,200 L).
• Stefani 10 L: about $65 a year per candle (Aqua Endura, $32.50 at Bunnings, about 6 months each). The listings don’t say how many candles it takes.
• Philips FastFlow: unknown. No Australian shop listed its replacement cartridge when we checked; Philips rates it at 7,268 L or 12 months.
• Waterdrop C1S: about $120, one C1RF filter a year ($119.99 at Waterdrop Australia, sold out on 22 October).

Over three years, the Brita jug costs about $420 including the jug (the box has three cartridges), and the On-Tap about $100 at 2 litres a day (the cartridge in the box plus one refill). Standard 10-inch housings, as used by Stefani’s under-sink systems, take generic cartridges from any brand, which is the cheapest way to run a plumbed filter long term.

The competition

These are the other 16 filters we compared for this page, and why each one missed out. Prices are from the retailer named, checked 22 October 2026. We don’t show Amazon prices.

Jugs

• Stefani Clear PureFlow Elite 3.8 L ($49 at Bunnings). Big, with two cartridges in the box, but its cartridges cost about $169 a year, the dearest of the jugs we compared, and its PFAS claim is Stefani’s own, with no certificate number shown.
• Stefani 2 L Compact ($18.90 at Bunnings). Cheap to buy and refill, but small, with basic filtration.
• Aquaphor Compact 2.4 L (Amazon Australia). Cheaper cartridges than Brita’s, but a small filtered volume and refills only on Amazon.
• Cuckoo 3.8 L (Amazon Australia). We found no replacement cartridges on sale in Australia (18 October 2026).

On-tap filters

• Brita On Tap Pro V-MF ($98 at Bunnings). A litre counter on the unit, but about $115 a year in refills, and each refill lasts half as long as the Philips AWP315.
• Stefani Lead Free On Tap ceramic, OTF32A ($61.62 at Bunnings). Cheap refills, but no flow rate or change interval published, and its reduction claims carry no certification listing.

Benchtop filters

• Stefani Pure Flow 8.5 L dispenser ($50.50 at Bunnings on 1 Nov 2026, down from $69.98). A tap instead of a jug, but a plastic body and a basic carbon cartridge. Powered dispensers that chill or heat the water are in our water dispensers and coolers guide.
• Devanti 14 L gravity filter (Amazon Australia). Large, but a budget build, with replacement cartridges only online.

Plumbed-in filters

• Stefani twin-stage under-sink ($159 at Bunnings). On the WaterMark register and the better choice for tank or bore water grit, but no NSF/ANSI listing for what it reduces.
• Brita mypure A1C under-sink kit ($310.95 from Brita’s own store). On the WaterMark register (licence 060031), but no NSF/ANSI listing, about $192 a year in A1000 cartridges at Bunnings prices (18 October 2026), and Brita says it’s made for soft water areas.
• Puretec PureMix Z6 (Amazon Australia). On the WaterMark register (licence 074617) and runs your existing tap at full flow, but Puretec’s 0.1 micron rating is nominal, no NSF/ANSI certification is listed, and its cartridges cost about $318 to $464 a year (18 October 2026).
• Frizzlife MK99 (Amazon Australia). Certified by IAPMO to NSF/ANSI 53 for lead and cysts (W-11831), but not on the WaterMark register when we checked (18 October 2026), so a licensed plumber can’t install it.
• Waterdrop 10UA (Amazon Australia). A single twist-in cartridge that runs your existing tap, but not on the WaterMark register (21 October 2026), and its listing says tested against NSF standards, not certified to them.

Reverse osmosis

• Philips 100 GPD countertop RO ($599 at Bunnings). Certified to NSF/ANSI 58 (WQA), which the C1S isn’t, but it costs $175 more than the C1S, fluoride isn’t on its listing, and its replacement filter was only sold as an import when we checked (21 October 2026). If certified performance matters more to you than price, buy this one instead.
• Philips 75 GPD RO tap station ($499 at Bunnings). WaterMark-certified, with a remineraliser, but it needs a licensed plumber and a tank in the cupboard. The pick for home owners in our reverse osmosis guide.
• Geekpure 5-stage RO (Amazon Australia). A standard tank RO kit with its own tap, but not on the WaterMark register (18 October 2026), so a licensed plumber can’t install it.