Shield is an Australian-owned manufacturer (since 2010) selling a full filtration range online with Brisbane stock and national delivery. It stands out on the credential FilterOut weighs most heavily: Shield publishes its WaterMark certificate No. 030064 (AS/NZS 3497), and the AS3497 claim is independently corroborated on Amazon AU and eBay AU product listings. Add 730 reviews at 4.8/5, openly-sold standard cartridges and transparent, keen pricing, and it slots in near the top of the entire directory. The trade-offs are an online-only model (you supply your own plumber) and a minor semi-proprietary "Quick Change" cartridge sub-line.
SHIELD® is a proudly Australian-owned and operated water filtration brand, founded in 2010 and focused exclusively on designing and manufacturing filtration systems for Australian homes and businesses. It operates as an online retailer with local stock in Brisbane, shipping nationally within one business day with free delivery.
The range is genuinely full-line: whole-house systems (town, tank and hard-water configurations), under-sink sediment-carbon and reverse osmosis units, UV sterilisers, portable and caravan filters, taps, and a complete replacement cartridge and parts catalogue. Carbon-block stages are rated to remove up to 99% of residual chlorine, with optional anti-scale cartridges for hard-water areas.
Shield’s standout credential is certification. The company states all components are manufactured to AS/NZS 3497 and are fully WaterMark certified, and it publishes its WaterMark certificate number (030064) on a dedicated page. That AS3497 WaterMark claim is independently corroborated on third-party marketplaces such as Amazon Australia and eBay Australia, where Shield-branded systems carry the same certification in their specifications. For a permanently plumbed system, WaterMark compliance is the mandatory Australian requirement, so this matters.
Two things temper an otherwise top-tier profile. First, Shield is online-only — there is no in-house installation network, so a buyer arranges their own licensed plumber (many reviews describe this going smoothly, and several note Shield’s systems came in around $1,000 cheaper than comparable advertised units). Second, alongside its openly-sold standard cartridges, Shield offers a semi-proprietary "Quick Change" cartridge line tied to its quick-change systems — easily avoided by choosing standard housings, but worth knowing. We list Shield’s published WaterMark certificate in good faith pending a final cross-check against the official register.
WaterMark certificate No. 030064 (AS/NZS 3497) published and corroborated independently on Amazon AU/eBay AU. No NSF claim. Register cross-check advisable.
Online-only — no in-house install network; customer supplies own plumber. Many reviews report smooth installs.
Full pricing published, certificate number published, large open review base, clear product specs. Very strong.
Complete replacement cartridge/parts catalogue sold directly; reviews note free replacement parts sent on request.
Stainless-steel covers on whole-house range; designer tap options; tidy product design.
Australian-owned and operated since 2010; designs and manufactures its own systems.
Standard 10"/20" cartridges sold openly incl. a universal replacement; minor Quick Change sub-line is the only lock-in.
Keen pricing and openly-priced standard cartridges; buyers report ~$1k savings vs comparable systems.
AS3497-certified range incl. PFAS/fluoride RO and 99% chlorine carbon block; certified rather than FilterOut-tested.
High-flow Big Blue whole-house options (e.g. 75L/min) and mixer-tap undersink units sized for household demand.
| System | Price | Type |
|---|---|---|
| Undersink Twin 2-stage Quick Change | $115 (was $135) | Under-sink |
| 5-Stage Undersink Alkaline RO (PFAS/lead/fluoride) | $295 (was $345) | RO (AS3497) |
| 10"x4.5" Whole House Triple | $415 | Whole house |
| 20"x4.5" Big Blue Triple | $645 (was $675) | Whole house |
| 20"x4.5" 3-Stage Town Water | $995 | Whole house |
| 20"x4.5" Chloramine / PFAS / Scale | $1,820 | Whole house |
| 20"x4.5" with Aragon (scale/chlorine/fluoride/lead) | $2,250 | Whole house |
Pricing as published on shieldwaterfilter.com.au at time of review; supply only (installation by your own plumber). Standard cartridges sold openly. Confirm current pricing directly.