WH-003-SS Triple Whole House
- Triple Stage Filtration
- Stainless Steel Cover
- Various Sediment & Carbon Options
- 10 Yr Warranty
WH-003-SS Triple Whole House System (Stainless Steel)
Designed for Australian conditions, the WH-003-SS Triple Whole House System delivers outstanding whole-home filtration inside a durable 304 stainless steel enclosure. Built to resist corrosion, heat, coastal air, and UV exposure, it’s the ideal long-term solution for families who want cleaner, safer water from every tap, without paying inflated big-brand prices.
Can be wall-mounted or free-standing and suits most medium–large households. For smaller homes or units, we recommend the WH-002-SS Twin System.
Why Choose the WH-003-SS?
- Full stainless-steel frame + cover — resists rust, UV, heat, and coastal salt air.
- Industry-standard 20″ × 4.5″ housings — no proprietary fittings or cartridges.
- 1″ 316 Stainless Steel ports for high flow rates throughout the home.
- Triple-stage capability — customise cartridges for sediment, chloramine, lead, PFAS, taste/odour, hardness and more.
- Purge valves for easy priming, flushing and maintenance.
- WaterMark certified (052014) — compliant for Australian installations.
- 10-year system warranty for long-term peace of mind.
What’s Included
- Triple 20″ × 4.5″ filtration housings
- 1″ BSP brass inlet/outlet ports
- Heavy-duty 304 stainless steel RHS frame
- 304 stainless steel protective cover
- Purge/bleed valves on the filter heads
- Fully WaterMark certified components
- Compatible with all industry-standard 20″ × 4.5″ cartridges
System Dimensions
- Height: 740 mm
- Width: 600 mm
- Depth: 210 mm
Recommended Filter Combinations
Rain, Bore or River Water
- Stage 1 — Polyspun sediment
- Stage 2 — Polyspun sediment (dual sediment setup)
- Stage 3 — Silver-impregnated carbon
Chlorinated Town Water
- Stage 1 — Polyspun sediment
- Stage 2 — Coconut carbon, Chloramine filter or Aragon
- Stage 3 — As above depending on local water quality
Chloramine-Treated Water
- Stage 1 — Polyspun sediment
- Stage 2 — Chloramine carbon
- Stage 3 — Aragon or KDF/Carbon combo
PFAS, Lead & Heavy Metal Reduction
- Stage 1 — 1 micron polyspun
- Stage 2 — KDF/Carbon combo
- Stage 3 — Matrikx PB1 or Aragon
Hard Water (Scale Reduction)
- Stage 1 — 1 micron polyspun
- Stage 2 — Water softener cartridge
- Stage 3 — Aragon
PFAS Reduction: The cartridges rated for PFAS reduction include Matrikx PB1 and Matrikx CTO. These can be used in Stage 2 or Stage 3 depending on your setup.
Location-Based Recommendations
Western Australia & South Australia
- Stage 1 — 1 micron polyspun
- Stage 2 — Softener cartridge
- Stage 3 — Chloramine/KDF (mid-spec) or Aragon (high-spec)
Eastern States (NSW, VIC, QLD, TAS) — PFAS Affected Areas
- Stage 1 — 1 micron or 5 micron polyspun
- Stage 2 — Chloramine/KDF combo or Aragon
- Stage 3 — Matrikx CTO
Replacement Filters
Purchase additional filters here:
Installation Availability
Professional installation is currently available in: Perth, Gold Coast, Brisbane, Sunshine Coast, Sydney, Newcastle, Melbourne, Alice Springs & Tasmania.
Purchasing 2 or more systems attracts a 10% discount (not applicable with other offers).
Warranty
The WH-003-SS system includes a 10-year warranty on the frame and housings. Covers defects in materials and workmanship under normal use. Stainless steel cover included.
Customer Reviews
Had quite a few Perth companies quote for a whole house water filter system and some of the prices were extreme! Upon doing a google search I came across PSI and read the reviews. Found a plumber who didn’t charge the same price to install as the whole system cost me thankfully. It took him two hours to install. Water tastes great. The advice I received over the phone when deciding on this system and which cartridges would suit our area best, was amazing. Thanks guys!
tastes awesome thanks a lot
Highly recommend! Well priced, top quality, tap water now tastes clean and crisp and showers are soft.
Whole of house filter, working well. Noticed a big difference on my skin and hair . No more Chemical smells .
I ordered the triple filter system online and it turned up in WA 8 days later. Quick easy install and it has gone a long way to improving the water quality.
Painted up easily and blends into my fence line.
