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Compatibility Checker · CHF Replacement Filters · Australia-Wide Shipping

Which CHF system
do you have?

Complete Home Filtration installs three 3-stage systems across Australian homes — 15" and two 10" variants. Use our quick checker to identify yours and confirm whether PW Series replacement filters are designed for your housing format — before you order.

Step-by-step

Compatibility checker.
A question or two.

Answer one or two quick questions about your CHF cartridges and we'll tell you which PW filters fit.

What size are your filter cartridges?

Open one of your filter housings and look at the cartridge inside, or check the housing length. CHF systems use one of two cartridge sizes. A 15" cartridge is about 38 cm long; a 10" cartridge is about 25 cm. All CHF systems are 3-stage (three housings in a row).

Look at the top of the cartridge — is it flat, or does it have a raised spigot?

Pull out one of your old cartridges and look at the top end. A flat top sits level across the whole end. A raised spigot has a protruding nipple or collar sticking up in the centre. This tells us which 10" CHF system you have.

CHF standard flat-top cartridge cap
Flat topOriginal 10" system
CHF proprietary raised-spigot cartridge cap
Raised spigotProprietary 10" system
Visual reference

CHF housing formats
at a glance.

The three CHF systems you'll find in Australian homes — all 3-stage. PW Series filters fit the 15" × 4.5" system and the original flat-top 10" system; a filter for the proprietary 10" is on the way.

PW Series fits

CHF-6000 / CHF-6200
(15" × 4.5" system)

The most common CHF system. Three 15" × 4.5" housings in series — sediment, resin softening and carbon block. The cartridges have a proprietary sealed/spigot top, and our PW Series 15" filters are made to match it.

Cartridge15" × 4.5"
Cartridge topProprietary spigot
Stages3-stage
PW Series filters →
PW Series fits

Original 10" system
(10" × 4.5", flat top)

The original 10" × 4.5" CHF system, with standard flat-top cartridges in a 3-stage configuration. Because the cartridge top is flat (not proprietary), our 10" filters drop straight in.

Cartridge10" × 4.5"
Cartridge topStandard flat
Stages3-stage
10" flat-cap set — from $140 →
Coming soon

Later 10" system
(10" × 4.5", raised spigot)

The later 10" × 4.5" CHF system, with proprietary raised-spigot cartridges in a 3-stage configuration. A PW Series filter to match this proprietary format is in development — not available just yet.

Cartridge10" × 4.5"
Cartridge topProprietary spigot
Stages3-stage
Notify me →
Finding your model

Where to find your
CHF model label.

Most CHF installations have a label or sticker identifying the system model. It's usually in one of three places.

01

On the housing cap (most common)

Look at the top cap of one of the housings — there's often a sticker with the CHF logo and model number printed in small text.

02

On the mounting bracket

The metal or plastic bracket the housings are attached to often has a CHF identification label, especially on installs done after 2020.

03

On your original paperwork

Check the original installation invoice or service log book — the model number (CHF-6000, CHF-6200, or similar) is usually listed there. CHF customers also receive annual service reminders by SMS/email showing model details.

Look here
Still unsure?

Send us a photo
we'll identify it.

Can't find a label? Not sure whether your filters are 15" or 20"? Snap a photo of your housings — including a ruler or familiar object for scale if you can — and we'll identify your system and confirm compatibility within 24 hours.

No commitment. We'll just tell you what you've got and whether PW Series filters fit.

Email a photo of your housings straight to Joe:

joe@properwater.com.au →

Attach a photo (include a ruler or hand for scale if you can) and your suburb — you'll get a straight answer on exactly which filters fit, usually same day.

Identified your system?
Time to save $108–$308 a year.

If you've got the 15" × 4.5" CHF whole-home format, PW Series filters fit straight in.

PW Series filters — $240 Call 0452 622 990

Please note: ProperWater Pty Ltd and our products are in no way endorsed by, affiliated with, or associated with Complete Home Filtration or Environmental Water Solutions Pty Ltd. References to CHF and Complete Home Filtration — including model references such as CHF-6000 and CHF-6200 — are for product-compatibility purposes only; PW Series replacement filters are independently designed for compatibility with the 15" × 4.5" and original 10" × 4.5" flat-cap filter housings used in CHF systems. All comparative pricing is based on renewal quotes reported to us by CHF customers, not on figures published by Complete Home Filtration.

build r11.17 · 29 Aug 2026