Puretec Under Sink Water Filters: How to Choose the Right Kitchen Filter for Cleaner Drinking Water

A Puretec under sink water filter can be a practical way to improve the taste, smell and everyday quality of your drinking water without taking up bench space. Installed below the kitchen sink, these systems can provide filtered water for drinking, cooking, tea, coffee and filling bottles.

The best Puretec under sink water filter depends on your water source, kitchen layout, filtration goals, cartridge type, flow rate, tap setup and whether you are targeting taste and odour, sediment, chlorine, selected contaminants or broader water quality concerns.

Installed Today offers supply-only ordering across major Australian metro areas for Puretec water filtration systems, including drinking water filtration systems, kitchen water filters, broader water filters, whole-home water filtration systems and shower water filters.

Quick Answer

A Puretec under sink water filter may suit your home if you want filtered drinking water at the kitchen sink without using a benchtop filter jug or taking up counter space.

For most homes:

• Choose a kitchen or drinking water filter for one-tap drinking and cooking water

• Choose a whole-home filter if you want broader filtration across multiple outlets

• Choose a shower filter for shower water, not drinking water

• Check the cartridge specifications before assuming what the filter reduces

• Arrange water testing if you are concerned about PFAS, fluoride, lead, heavy metals, bacteria, bore water, rainwater or health-related contaminants

• Confirm tap setup, under-sink space and installation requirements before ordering

• Replace cartridges on schedule to maintain performance

A Puretec under sink filter can be a strong everyday drinking water option, but not every cartridge removes every contaminant. Choose the filter based on your water source and the specific problem you want to solve.

What Is a Puretec Under Sink Water Filter?

A Puretec under sink water filter is a filtration system installed below the kitchen bench, usually inside the cupboard under the sink.

Depending on the model and setup, it may connect to:

• A dedicated filtered water tap

• A compatible mixer tap

• A kitchen drinking water outlet

• Existing cold-water plumbing, where suitable

The filter cartridge is hidden under the sink, helping keep the kitchen bench clear while providing filtered water at the tap.

Under sink filters are commonly used for:

• Drinking water

• Cooking water

• Tea and coffee

• Filling reusable bottles

• Better-tasting tap water

• Reducing chlorine taste and odour, depending on cartridge

• Reducing sediment, depending on cartridge

• Improving everyday kitchen water quality

Why Choose an Under Sink Water Filter?

An under sink filter can be a better fit than a jug or benchtop unit for households that want filtered water available on demand.

Space-Saving Kitchen Design

Because the cartridge sits inside the under-sink cupboard, it does not take up bench space. This can suit modern kitchens, small kitchens, apartments and homes where a clean benchtop is preferred.

Better Everyday Convenience

Under sink filters are connected to the water supply, so you do not need to keep refilling a jug or waiting for water to pass through a small countertop filter.

Filtered Water for Drinking and Cooking

A kitchen filter can be used for everyday water needs, including:

• Drinking water

• Tea

• Coffee

• Cooking

• Filling bottles

• Washing fruit and vegetables where appropriate

• Ice trays

Reduced Bottled Water Use

A good kitchen filter may reduce reliance on bottled water if your main concern is taste, smell or everyday drinking water convenience.

Neater Than Benchtop Filters

Under sink systems are hidden away, which may suit customers who want filtration without a visible unit on the bench.

How Puretec Under Sink Water Filters Work

A typical under sink filter works by sending cold water through a cartridge before it reaches the filtered water outlet.

The process may include:

• Water enters the filter from the cold-water supply

• Water passes through the cartridge media

• The cartridge reduces selected contaminants depending on its design

• Filtered water exits through a dedicated tap or compatible connection

• The cartridge is replaced periodically to maintain performance

The exact filtration performance depends on the specific Puretec model and cartridge.

What Can a Puretec Under Sink Water Filter Help With?

Depending on the system and cartridge, a Puretec under sink filter may help with:

• Chlorine taste

• Chlorine odour

• Sediment

• Rust particles

• General tap water taste

• Cloudiness caused by particles

• Some selected contaminants, where the cartridge is rated for them

• Better water for tea and coffee

• Better water for cooking

• Reduced bottled water use

Always check the product specifications. A filter that improves taste is not automatically a fluoride, PFAS, bacteria or heavy metal filter.

What a Puretec Under Sink Filter May Not Solve

An under sink filter may not be the right solution for every water quality issue.

It may not automatically solve:

• PFAS concerns

• Fluoride concerns

• Lead concerns

• Heavy metal concerns

• Bacteria or virus concerns

• Bore water safety

• Rainwater or tank water safety

• Whole-home sediment

• Shower water quality

• Hard water scale across the home

• Appliance protection across the whole property

For those issues, start with water testing and compare the correct type of filtration or treatment system.

Best Puretec Under Sink Water Filters to Compare

Installed Today offers a range of Puretec drinking and kitchen water filtration options. The best choice depends on the water issue, kitchen layout and cartridge requirements.

Puretec PureMix Z7 Water Filter

The Puretec PureMix Z7 Water Filter may suit customers wanting a kitchen-focused drinking water filter for everyday use.

It may suit:

• Kitchen drinking water

• Cooking water

• Tea and coffee

• Town water taste and odour concerns, depending on cartridge

• Customers wanting an under sink filtration option

• Homes looking for a higher-capacity Puretec drinking water option

Before ordering, check the cartridge specifications, flow rate, tap requirements, under-sink space and installation needs.

Puretec PureMix Z2 Water Filter

The Puretec PureMix Z2 Water Filter may suit customers looking for a practical drinking water filter for everyday kitchen use.

It may suit:

• Smaller households

• Kitchen drinking water

• Everyday tap water improvement

• Customers comparing compact Puretec water filters

• Homes where taste and odour are the main concerns

If your concern is PFAS, heavy metals, fluoride or bacteria, check product-specific reduction claims and consider water testing before ordering.

Puretec PureMix Z6 Water Filter

The Puretec PureMix Z6 Water Filter may suit customers comparing Puretec kitchen and drinking water filter options.

It may suit:

• Filtered water at the kitchen sink

• Tea and coffee

• Cooking water

• Everyday drinking water use

• Households wanting a cartridge-based system

Suitability depends on water quality, the cartridge, flow rate and installation setup.

Puretec X4 Water Filter

The Puretec X4 Water Filter may suit customers wanting a compact water filtration option for drinking water.

It may suit:

• Smaller kitchens

• Limited under-sink space

• Point-of-use drinking water filtration

• Everyday tap water improvement

• Customers comparing compact Puretec options

Before ordering, confirm connection requirements, tap setup, cartridge life and installation suitability.

Under Sink Filter vs Whole-Home Water Filter

An under sink filter and a whole-home filter do different jobs.

Choose an Under Sink Filter If:

• You mainly want filtered drinking water

• You want better water for cooking, tea and coffee

• You want one kitchen tap filtered

• You want to keep the system hidden under the sink

• You do not need filtered water across the whole property

Choose a Whole-Home Filter If:

• You want filtration before water reaches multiple taps

• You want broader household water treatment

• You want sediment reduction across the property

• You want filtration for showers, laundry and multiple fixtures

• You have flow rate and pressure requirements checked

Customers needing broader filtration can compare whole-home water filtration systems, including the Puretec G6 Whole House Water Filter, Puretec G12 Whole House Water Filter and Puretec G13 Whole House Water Filter.

A whole-home filter does not automatically replace a drinking water filter. Some homes use both: whole-home filtration for broader water quality and an under sink system for drinking water.

Under Sink Filter vs Benchtop Filter

A benchtop filter sits on the kitchen bench and connects to a tap or is filled manually. An under sink filter is installed below the bench and keeps the filter body hidden.

Under Sink Filters May Suit:

• Permanent kitchen setups

• Neater benchtop appearance

• Higher everyday use

• Customers wanting filtered water from a dedicated tap

• Homes with enough cupboard space

Benchtop Filters May Suit:

• Temporary use

• Rental situations where plumbing changes are not possible

• Smaller budgets

• Customers who do not want under-sink installation

If you want a cleaner kitchen layout, an under sink filter is usually the neater option.

Under Sink Filter vs Shower Filter

A shower water filter is designed for shower water, not drinking water.

Choose a shower filter if your concern is shower water feel or smell, depending on the cartridge.

Choose an under sink drinking water filter if your concern is water for drinking, cooking, tea and coffee.

They are not interchangeable.

Under Sink Filter vs Reverse Osmosis

A standard Puretec under sink filter and a reverse osmosis system are not the same thing.

A standard under sink filter may suit:

• Chlorine taste and odour

• Everyday drinking water

• Sediment reduction

• Simpler cartridge replacement

• Better flow than some RO systems

• Kitchen water improvement

Reverse osmosis may suit:

• Specific dissolved contaminant concerns

• Some PFAS or heavy metal concerns where the system is rated

• Higher dissolved solids

• Point-of-use drinking water where water testing supports RO

• Customers prepared for more maintenance, drainage and slower flow considerations

RO is not automatically best for every home. For everyday town water taste and odour, a standard under sink drinking water filter may be enough.

Water Source Matters

The right Puretec under sink filter depends heavily on the water source.

Town Water

For treated town water, common concerns include:

• Chlorine taste

• Chlorine odour

• Sediment from pipework

• General drinking water taste

• Water for tea and coffee

A Puretec kitchen or drinking water filter may suit these needs, depending on cartridge specifications.

Rainwater or Tank Water

Rainwater and tank water can contain sediment, organic matter or bacteria depending on roof catchment, gutters, tank condition and maintenance.

If rainwater or tank water is used for drinking, water testing is important.

Depending on results, you may need:

• Sediment filtration

• Carbon filtration

• UV treatment

• Specialist cartridges

• Ongoing maintenance

• Regular testing

A simple under sink filter may not be enough for untreated rainwater used as drinking water.

Bore Water

Bore water can vary widely. It may contain minerals, sediment, iron, manganese, salinity, odour, metals or bacteria.

Do not choose an under sink filter for bore water based only on taste or appearance. Water testing should come first.

PFAS, Fluoride, Lead, Heavy Metals and Bacteria

If your concern is PFAS, fluoride, lead, heavy metals, bacteria or viruses, do not rely on broad filter claims.

Before choosing a system:

• Arrange water testing where appropriate

• Identify the actual contaminants

• Check the product specifications

• Match the cartridge to the target contaminants

• Confirm replacement intervals

• Consider whether RO, UV or another system is more suitable

• Retest if needed for health-related concerns

A filter that improves taste and odour is not automatically a health-contaminant filter.

How to Choose the Best Puretec Under Sink Water Filter

1. Identify the Water Problem

Start by asking what you want to improve.

Common goals include:

• Better taste

• Less chlorine smell

• Less sediment

• Better drinking water

• Better water for tea and coffee

• Reduced bottled water use

• A neater kitchen filter setup

More serious concerns such as PFAS, lead, bacteria, bore water or rainwater should be tested.

2. Check Your Kitchen Layout

Before ordering, check:

• Under-sink cupboard space

• Tap hole availability

• Whether a dedicated tap is needed

• Existing mixer tap setup

• Cold-water connection location

• Cartridge access

• Pipework condition

• Isolation valve access

• Whether drilling is required

• Whether a licensed plumber is needed

A filter that suits one kitchen may not fit another without extra work.

3. Compare Cartridge Performance

The cartridge determines what the filter is designed to reduce.

Check:

• Chlorine reduction

• Sediment rating

• Flow rate

• Capacity

• Replacement interval

• Contaminant reduction claims

• Cartridge availability

• Maintenance requirements

Do not compare only by price. A cheaper filter may not target the water problem you actually have.

4. Consider Flow Rate

Flow rate matters if the filter is used often.

A filter that is too slow may become frustrating for:

• Filling bottles

• Filling kettles

• Cooking

• Family use

• High daily drinking water demand

Flow can also be affected by water pressure, cartridge age, sediment levels and installation setup.

5. Check Maintenance Requirements

Every under sink filter needs cartridge replacement.

Before ordering, check:

• How often cartridges need replacing

• Cost of replacement cartridges

• Whether cartridge access is easy

• Whether the system needs flushing

• Whether replacement can be done safely

• Whether a plumber is needed

A filter only performs properly if it is maintained.

Installation Considerations

Some under sink filters are simpler than others, but installation still needs to be done correctly.

Installation may involve:

• Connecting to the cold-water supply

• Mounting the filter head or bracket

• Installing a dedicated filtered water tap

• Drilling a sink or benchtop hole where needed

• Connecting tubing

• Checking for leaks

• Flushing the cartridge

• Confirming flow and pressure

• Ensuring access for future cartridge changes

Plumbing work should be completed by a licensed plumber where required.

Do not assume every system is DIY-friendly. Requirements depend on the product, kitchen setup and local plumbing rules.

Maintenance and Cartridge Replacement

Under sink filters need regular maintenance to keep water quality and flow consistent.

Maintenance may include:

• Replacing cartridges on schedule

• Flushing the filter after replacement

• Checking for leaks

• Monitoring flow rate

• Watching for taste or odour changes

• Keeping the filter accessible

• Following product-specific instructions

Signs a cartridge may need replacing include:

• Slower flow

• Changed taste

• Changed smell

• Cloudy water

• Visible sediment

• Cartridge used beyond the recommended period

Cartridge life depends on usage, water quality and the filter model.

Environmental Benefits

A Puretec under sink filter may help reduce bottled water use if your household currently buys bottled water for taste or convenience.

Potential benefits include:

• Less single-use plastic

• Less bottled water storage

• Easier bottle refilling

• Filtered water available at home

• Lower reliance on packaged drinking water

Environmental results depend on household habits, cartridge replacement and how the system is used.

Common Mistakes When Buying an Under Sink Water Filter

Assuming Every Puretec Filter Removes Every Contaminant

Different cartridges do different jobs. Check the specifications for the specific model.

Buying Without Testing Problem Water

PFAS, fluoride, lead, heavy metals, bacteria, bore water and rainwater should be tested before choosing a filter.

Forgetting Cartridge Replacement

A neglected cartridge can lose performance and reduce flow.

Choosing a Drinking Water Filter for Whole-Home Problems

An under sink filter treats one point of use. It does not filter showers, laundries or every tap.

Ignoring Tap Compatibility

Some filters require a dedicated tap or specific mixer setup.

Not Allowing Space for Cartridge Changes

The system needs enough room for installation and future cartridge replacement.

Assuming Supply-Only Includes Installation

Supply-only pricing generally covers the product only unless installation is clearly listed or selected.

Supply-Only Ordering with Installed Today

Installed Today offers supply-only ordering across major Australian metro areas. This can suit customers who already have a licensed installer organised and want to order the product online.

For water filters, the listed product price generally covers the product only.

It does not usually include:

• Installation labour

• Plumbing alterations

• New pipework

• Tap hole drilling

• Electrical work

• Drainage changes

• Whole-home pipework modifications

• Water testing

• Cartridge replacement labour

• Site assessment

• Disposal of old equipment

• Compliance upgrades

Before ordering a supply-only Puretec under sink water filter, confirm your water source, kitchen setup, tap requirements, cartridge requirements and installation suitability with a licensed plumber where required.

Before Ordering Checklist

Before choosing a Puretec under sink water filter, check:

• Is your water source town water, rainwater, tank water or bore water?

• What do you want the filter to reduce?

• Is water testing needed?

• Is the system for drinking water only?

• Do you need whole-home filtration instead?

• Is there enough under-sink space?

• Is a dedicated tap required?

• Is tap hole drilling needed?

• Is the cold-water connection suitable?

• Is water pressure suitable?

• Is cartridge access practical?

• How often do cartridges need replacing?

• Are replacement cartridges easy to source?

• Is PFAS, fluoride, lead, heavy metals or bacteria a concern?

• Is plumbing work required?

• Is the product supply-only?

• Has a licensed plumber confirmed suitability where required?

Frequently Asked Questions

What is the best Puretec under sink water filter?

The best Puretec under sink water filter depends on your water source, kitchen setup and filtration goals. Popular Installed Today options to compare include the Puretec PureMix Z7, Puretec PureMix Z2, Puretec PureMix Z6 and Puretec X4.

Do Puretec under sink filters remove chlorine?

Many drinking water filters can help reduce chlorine taste and odour, depending on the cartridge. Check the product specifications for the exact reduction claims.

Do Puretec under sink filters remove fluoride?

Not every under sink filter removes fluoride. If fluoride reduction is important, check the product specifications and consider water testing before choosing a system.

Do Puretec filters remove PFAS?

Do not assume every Puretec filter removes PFAS. If PFAS is a concern, arrange water testing and choose a filter specifically rated for the target contaminants.

Do under sink filters remove bacteria?

Not all under sink filters remove bacteria. Rainwater, tank water, bore water or bacteria concerns may require water testing and specialist treatment such as UV, depending on the results.

Is an under sink water filter better than a jug?

An under sink filter is usually more convenient for everyday kitchen use because it is connected to the water supply and does not need constant refilling. A jug may suit temporary or lower-use situations.

Do I need a plumber to install a Puretec under sink water filter?

Some systems and kitchen setups may require a licensed plumber, especially if a dedicated tap, drilling, plumbing alteration or pressure consideration is involved.

How often should Puretec cartridges be replaced?

Replacement timing depends on the filter model, cartridge type, water quality and household usage. Follow the product guidance and replace cartridges on schedule.

Can I use an under sink filter for the whole house?

No. An under sink filter treats water at one tap. For broader filtration, compare whole-home water filtration systems.

Final Word

A Puretec under sink water filter can be a practical way to improve everyday drinking and cooking water while keeping the filter hidden inside the kitchen cupboard.

The right system depends on your water source, tap setup, under-sink space, cartridge requirements and the specific contaminants or water quality issues you want to address.

For everyday kitchen water, compare Puretec water filtration systems, drinking water filtration systems and kitchen water filters.

For broader household filtration, compare whole-home water filtration systems. For shower-specific water quality goals, browse shower water filters.

If you are concerned about PFAS, fluoride, lead, heavy metals, bacteria, bore water or rainwater safety, arrange water testing before choosing a filter.