Our filters

Three stages. One whole-home system. Clear aftercare choices.

We researched the parts customers rarely get shown: micron structure, filter media, carbon construction, cartridge size, and long-term replacement costs. Then we built our system around choice.

Why staged filtration matters

One cartridge should not have to do every job.

Our three-stage configuration lets each filter focus on a specific task, protecting the next stage and helping maintain flow and useful filter life.

Stage 1

Gradient Sediment

10 → 5 → 1 micron

The outer layer catches larger dirt, rust, and sand. Water then moves through 5 micron before the 1-micron inner layer provides fine sediment filtration. The gradient structure increases dirt-holding capacity and protects the carbon stages.

Stage 2

Carbon + KDF

Targeted treatment media

Natural coconut-shell activated carbon is paired with KDF media. Carbon helps reduce chlorine, unwanted taste, and odour; KDF is used for heavy-metal reduction and bacteriostatic performance within the filter media.

Stage 3

Sintered Carbon

Final polishing stage

We specify a sintered coconut-shell carbon block. It is formed as a stable porous block rather than relying on chemical adhesive binders, giving water extensive contact with the carbon for final chlorine, taste, odour, and fine-particle polishing.

Standard-size filters

20-inch universal. Your system stays yours.

We use full-size 20 × 4.5-inch universal housings and avoid restrictive fittings. You can choose Core Water Worx servicing, have filters posted to you, or source compatible cartridges elsewhere.

We service it

We supply and install the filters and complete the scheduled system checks. Our team handles the servicing for you.

We post them

We send the correct filter pack to your door, ready for you to arrange the filter changes.

You self-manage

Source compatible 20-inch filters from your preferred supplier and arrange your own maintenance.

Filter aftercare

Choose how hands-on you want to be.

Every install includes your first 12 months of filters. At time of install you can upgrade to 24 months+ service and aftercare enhancements. From then on, use our full-service plan, have the filters supplied to you, or manage the system entirely yourself.

Fully managed and installed

$616.00

inc. GST / 12-month cycle

Month 6: sediment filter replaced
Month 12: sediment, carbon + GDC-KDF replaced
Two service visits
Water pressure, valves, and seals checked each visit
All filters and labour included

Supply only

$369.60

inc. GST plus postage / 12-month cycle

Month 6: sediment filter posted
Month 12: sediment, carbon + GDC-KDF posted
You arrange the filter changes
No service visit required

Self-managed

Order as required

You choose the supplier

Use compatible 20-inch filters
Buy from Core Water Worx or elsewhere
You control your maintenance cost

Individual replacement pricing

Only need a single filter? Simple, published pricing.

Filter	Supplied & installed	Posted to you (plus postage)
Sediment filter	$215.60	$107.80
Carbon filter	$200.20	$138.60
GDC-KDF filter	$200.20	$138.60

All prices include GST; prices are plus postage. Filter timing is based on the current Core Water Worx aftercare schedule. Actual replacement timing can vary with household water quality and usage.

Better filtration. Better ownership.

Choose the aftercare path that fits your household.

Choose local servicing, convenient filter deliveries or self-managed aftercare, with clear pricing and a team you can reach.

Estimate your system