Compatible replacement filters for CHF systems at honest prices — without the locked-in service contract. Plus whole-home filtration installs and CHF system upgrades across Perth. Local Mount Hawthorn business, 50% of profits to the community.
Whether you're currently with Complete Home Filtration, looking to upgrade to a standard system, or installing filtration in a new home — start with the option that fits your situation.
Replacement filters designed for Complete Home Filtration 15" × 4.5" housings. Compatible three-stage configuration, same 15" format, no contract, no lock-in. $143 annual saving vs CHF supply pricing.
Move on from CHF's proprietary 15" format to standard 20" × 4.5" Big Blue. Cartridges from any supplier, ever. No contract, no lock-in for the rest of your home's life.
3-stage whole-home filtration installed on your mains supply. Every tap, shower and appliance gets filtered water. Standard 20" × 4.5" format — globally available cartridges.
If you've ever wondered why your CHF filters cost $348 a year — and why you can't seem to find them anywhere else — you're not alone. The 15" × 4.5" proprietary cartridge size makes CHF systems dependent on one supplier: CHF themselves.
We supply the compatible three-stage filter set that is designed to fit standard 15" × 4.5" housings. No contract. No service callout fee. No lock-in.
No high-pressure sales visits. No complicated contracts. No upselling. Just a clear path from enquiry to clean water at every tap.
Tell us your suburb and household setup. We check your Water Corporation data and recommend the right solution — free, no obligation.
Upfront pricing — no hidden call-out fees, no annual contracts. You see exactly what you're paying for before any work starts.
Filter changes typically take 30 minutes. New whole-home installations take 2–3 hours. Done by Perth locals, not subcontractors.
We send a reminder when your filters need changing. You decide when. You can DIY or book us — no lock-in either way.
We started Proper Water because we believed filtration in Perth had become more about contracts and proprietary lock-in than about doing it properly. We wanted to do the opposite — straightforward filters, fair pricing, local service.
50% of our profits go back into the community. We sponsor junior and community sport clubs across Perth — local cricket, soccer, footy, netball. Get filtered water at home, support the next generation playing sport in your neighbourhood. That's the deal.
Read our story →Whether you're a CHF customer looking for replacement filters, considering a whole-home upgrade, or installing filtration for the first time — get in touch and we'll talk through your options.
$143 saved per year. $1,430 over a decade. No contract. Local Perth service.
Complete Home Filtration and CHF are trademarks of their respective owners. Proper Water is not affiliated with, endorsed by, or sponsored by Complete Home Filtration. PW Series replacement filters are independently designed for compatibility with standard 15" × 4.5" filter housings. All comparative pricing based on Complete Home Filtration's publicly published rates as of 2025.