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Under Sink Water Filter System

Thinking about an installed system? Here is what it takes to put one in, and the simpler way to better-tasting tap water.

No plumbing, no power
30 day taste guarantee
Free shipping over $199
Verified buyer reviews
Before you plumb anything in

Under sink water filter system or a benchtop filter?

The practical differences between an installed system and a filter that sits on the bench.

Under sink water filter systemEarths Water benchtop filter
InstallationUnder the sink, connected to the plumbing. Often a plumber.Sits on the benchtop. Fill it from the tap.
PowerMany systems need power.No power.
Drain lineMany send part of the water to a drain.No drain, no wastewater line.
RentingA permanent change to the kitchen.No alterations. It moves house with you.
Cartridge changesUnder the sink, out of sight.In reach, on a simple schedule.
Where the water comes fromA dedicated tap.Pour from the jug, carafe or benchtop tap.
Find your water filter30 day taste guarantee
Installation

Filtered Water Without an Under Sink Water Filter

An under sink water purifier connects to plumbing beneath the kitchen sink and sends tap water through a dedicated tap. That suits homes, but is not essential for a refill routine.

Earths Water gravity-fed filtration keeps filtered water on the benchtop. Instead of placing equipment under the sink, you fill the reservoir, let it filter and serve.

Before you choose

What to Consider Before Installing an Under Sink Filter

A tankless under sink water filter still needs under-sink equipment, plumbing and power. Gravity-fed filtration keeps the cartridge within easy reach without that setup.

Benchtop filtration is easy to refill, clean and maintain, and it can move whenever the kitchen layout or needs change.

The benchtop alternative

Filtered Water Without an Undersink Tap

An under sink water filter can reliably deliver water through a dedicated tap, but fixed plumbing is not the only option.

With gravity-fed filtration, you fill the reservoir and let the cartridge do the work. There is no hidden equipment, while filtered water stays on the benchtop and filtration remains simple to use and maintain.

Not sure which one?

Which water filter is right for you?

Two questions. One answer.

How many people drink from it?
What do you prefer?
Your matchPick your answersWe'll match you to one filter.
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How it works

How our water filters work

No plumber. No power. No contractor.

Three steps to home water filtration. Then it is simply part of the kitchen.

1

Fill it.

With the tap water you already have.
2

Let it filter.

Gravity draws the water down through the filter.
3

Pour.

Into the glass, the kettle, drink bottles and ice cube trays.
Find your water filter30 day taste guarantee
Water filter reviews

What customers say about our water filters

Real kitchens, real customers. Here is what they say.

β˜…β˜…β˜…β˜…β˜…β€œIt literally has changed my life.”

I absolutely love my water filter. I struggled to drink water for years as I hated the taste and could always smell the chlorine. The water out of my filter is absolutely beautiful! I’m now drinking water constantly and I’ve told everyone who will listen that it literally has changed my life.

Sharon H. Β· 9L Glass Benchtop Β· Verified buyer
β˜…β˜…β˜…β˜…β˜…β€œWe definitely will never go back.”

We finally have stopped buying bottle water and drinking out of plastic bottles. The water tastes so good we couldn't believe the difference in taste when drinking coffee & tea. We definitely will never go back to tap & bottle water again.

Diane K. Β· 9L Glass Benchtop Β· Verified buyer
β˜…β˜…β˜…β˜…β˜…β€œLooks beautiful on display in the kitchen.”

Extremely happy with the purchase of a new 9L Glass Benchtop Water Filter. We are all drinking much more water daily. We love not having the taste of β€œtown water” as my kids call it. Very easy to set up and looks beautiful on display in the kitchen. Highly recommended. Thank you Earths Water

Hayley C. Β· 9L Glass Benchtop Β· Verified buyer
Find your water filter30 day taste guarantee
What it saves, worked out

What a water filter saves on bottled water

What does your house spend on bottled water?

Two questions. We'll do the maths.

How many people drink the water?
Litres each, per day
Bottled water, a year$2,161
What you'd save with Earths Water$1,850

8 L a day, 2,920 litres a year, at the typical supermarket price of 74Β’ a litre. Saving is after the cost of cartridges.

Find your water filter

Under Sink Water Filter Systems, Explained

An under sink water filter system connects to the cold water line under the kitchen sink and sends filtered water to its own tap. Some use carbon cartridges, others add a reverse osmosis membrane.

It suits some kitchens. For better-tasting tap water without the installation, a benchtop water filter sits on the bench beside the sink.

How an Under Sink Water Purifier Works

Water leaves the cold line, passes through one or more filter cartridges under the sink and comes out of a separate tap.

Tankless under sink water filters fit in less cabinet space. Many still need power, and reverse osmosis models need a drain.

What to Check Before Installing an Undersink Water Filter

Space in the cabinet, access to the plumbing, a drain point for reverse osmosis models and a power point for some.

If you rent, you usually need permission. Most installs involve a plumber.

An Under Sink Water Filter or a Benchtop Water Filter?

An Earths Water benchtop water filter needs none of that. Fill it from the tap and gravity draws the water through the Core 01 cartridge. No plumbing. No power.

The cartridge sits in reach, and you change it every 3 months or 350 litres, whichever comes first.

Choosing a Water Filter for Your Sink and Kitchen

If you want filtered water at the sink without installing anything, a benchtop filter sits beside it. Fill it from the tap and pour.

For one or two people, a water filter jug or a glass carafe. For a family or an office, a 9 litre benchtop. Every one comes with our 30 day taste guarantee.

FAQ

Questions About Under Sink Water Filter Systems

Why choose a gravity-fed water filter instead of a sink water filter?

A gravity-fed water filter needs no plumbing and no hidden equipment. Unlike a tankless under sink water filter, it stays on the benchtop, where you refill it and change the cartridge.

It suits renters, and anyone who would rather not install a fixed sink water filter.

How does a filter for kitchen sink use work?

An under sink water filter connects to household plumbing and sends water through filter cartridges before reaching a separate outlet. Depending on the design, filtration may use sediment media, carbon or an RO membrane.

A gravity-fed unit works differently. You fill the upper reservoir from the tap, and gravity moves water through the cartridge below. This under sink filter system alternative sits on the benchtop, making it easy to refill, clean and maintain without permanent installation at home.

What sets the tankless under sink water filter apart from traditional RO systems?

A tankless water filter under sink uses less cabinet space than many traditional RO systems, but it still depends on plumbing, an under-sink connection and power. A gravity-fed unit sits on the benchtop, so it can be refilled, cleaned and moved without installation.

The trade-off is that it does not include built-in features such as a filter life indicator or real-time water quality display. Instead, cartridge changes follow a simple schedule. For households prioritising flexibility and straightforward upkeep, this can be easier to live with than a fixed tankless undersink water system.

Do I need plumbing for an under sink water filter system?

An under sink water purifier normally connects to plumbing and may require power. Earths Water gravity-fed models do not use fixed pipework. You simply fill the upper reservoir from the tap, and gravity moves the water through the cartridge for everyday filtration on the benchtop.

Can an under sink water filter system improve taste and odour?

Taste and odour depend on the source water, cartridge design and maintenance. An under sink water filter may use filter cartridges, carbon media and an RO membrane as part of its filtration process.

Earths Water gravity-fed systems use replaceable cartridges in a benchtop reservoir. They offer a different setup for households that want a simple daily refill routine without fixed plumbing or powered equipment.

Will an undersink water filter suit my local supply?

The right choice depends on your source water, household setup and the type of system you prefer. Before buying an under sink water filter, consider available cabinet space, access to plumbing and whether the model requires power.

A gravity-fed unit may be better for renters or anyone wanting a movable benchtop option. If you have specific water quality concerns, contact Earths Water directly before choosing. Our team can explain how an under sink water filtration system compares with gravity-fed designs for setup, maintenance and everyday use.

Does a water filter for sink use create wastewater?

An under sink filtration system with fixed plumbing may send water to a drain. Gravity-fed systems have no drain connection or wastewater line.

Fill the reservoir, let water pass through the cartridge and serve the filtered water from the benchtop. For households comparing traditional RO systems, this removes one part of installation and everyday maintenance routine.

Where can I buy a water filter for sink use without plumbing?

Every Earths Water filter on this page sits on the bench, so it works beside any kitchen sink with nothing to install, unlike an undersink water filter. Choose a jug or glass carafe for one or two people, or a 9 litre benchtop for a family or an office.

Each product page lists the size, capacity, cartridge changes and what is in the box.

Where can I compare a filter for kitchen sink use?

You can explore gravity-fed systems on this page and compare them with a water filter for sink installation. Review the differences in plumbing, power, placement, refilling and cartridge access before deciding what best fits your home.

For many households, a benchtop option is easier to accommodate than an under sink water chiller or tankless undersink water filter system. Specific product details also let you compare size, capacity and everyday use before choosing an Earths Water model.

How often do I change the cartridge in a benchtop water filter?

Our jugs, glass carafes and benchtops take the Core 01 cartridge. Change it every 3 months or 350 litres, whichever comes first.

You can put cartridges on subscription and choose how often they arrive, so you never have to remember.

TASTE GUARANTEERISK-FREE TRIAL30DAYS
30 day taste guarantee

Try our water filters for 30 days

Trial your Earths Water filter at home for 30 days. If it does not taste better than tap water, you are covered.

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