Reverse Osmosis Australian Made Countertop Portable Water Filter System


Reverse Osmosis Water Filter Designed & Custom Built in Australia

The Hartgoods RO4 Reverse Osmosis Water Filter System contains the most advanced Reverse Osmosis Membrane in addition to 2 inline pre and post carbon (coconut fibre) filters and an initial precautionary sediment filter to remove larger particles like dust.

This unit is custom built, designed and tested in Australia using local, UK and USA components that meet the highest food and water quality standards.

    Features & Benefits

  • No plumbing required – simply connect to kitchen, laundry or bathroom tap/aerator
  • 5 Year Warranty – Hand built & factory tested in Australia
  • Filtered water does not pass through established home plumbing – thus avoiding potentially corrosive and pH induced change in older whole-house plumbing and faucets
  • Convenient Portable Design – Ideal for renters and can be moved from room to room easily if needed
  • Superior contaminant free water quality using proprietary 4 stage inline filtration
  • The RO Membrane typically only needs replacing every 4-5 years
  • Water tastes crisp, clean and satisfying
  • Can be adapted to dental surgery or medical conditions with optional Ion-exchange filter
  • Optional mineraliser filter cartridge easily added

Price includes Free Shipping in Australia

A further $20 discount is available if you have utilised any of our testing services at Toxtest. Simply use the discount code: toxtest when you checkout.

Hartgoods is keen to support those doing it tough because of the bushfires, drought and dust storms ravaging Australia. Therefore 10% of profits from all sales of Water Testing and Air and Water filters and Purifiers on Hartgoods, Toxtest and Toxno, will go towards two hard-working and incredibly helpful non-profits – Australian Red Cross and international TPRF, at least till the end of 2020. Details here.

Full support from Hartgoods founder, Hartmut Gunther, available before and after a purchase.

Additional details below.

Have a Question?
Go for it…

Or call Hartgoods owner (Hartmut) directly on
0439 54 7788

SKU: reverse-osmosis-australian-made-countertop-portable-water-filter-system Categories: ,


Heart of the Hartgoods RO4 Reverse Osmosis Water Purifier and Filter

The RO4 has four advanced and supremely efficient filters

  • 1 Sediment Pre-Filter Made in USA
    Mechanical filtration removing fine sediment particles (5 micron).
  • 2 Carbon Pre-Filter Made in USA
    Removes chlorine and other organic pollutants for membrane protection.
  • 3 Reverse Osmosis (RO) Membrane Made in USA
    Ultrafine thin-film-composite (TFC) Reverse Osmosis membranes can be considered as a molecular sieve constructed in the form of a film from two or more layered materials. Screens to 0.0005 micron, filtering viruses, bacteria and parasites. Repels heavy metals. Removes Fluoride and Hydrocarbons.
  • 4 Coconut Carbon Post-Filter Made in USA
    Final polish results in superb tasting, pure water.

Schematic of the Hartgoods Reverse Osmosis Australian Made Countertop Portable Water Filter System

While there is some overlap, each filter effectively removes specific impurities and contaminants.

Optimal operation conditions: Requires town water mains pressure at room temperature
Dimensions (cm): 34(width) x 16.5(depth) x 17 (height)
Capacity: Approximately 400 litres per day
Filter Change Intervals
Stage 1: Pre-sediment filter: 6-12 months of daily use
Stage 2: Pre-carbon filter: replace with post-carbon filter after 6-12 months of daily use
Stage 3: Reverse Osmosis Membrane filter: replace after 3- 5 years of daily use
Stage 4: Post-carbon filter: replace with new filter when changing pre-carbon filter
Cost per year of replacement filters: Less than $50. Amount dependent on usage
Warranty: 5 years (parts & labour)

Heavy Metals like Lead, Aluminium, Manganese, Mercury, Chromium, Cadmium and more
Potentially Radioactive metals like Radium and Strontium and more
Other metals like Copper and Iron
Chlorine & Fluoride, Chloramines and toxic town water disinfection by-products
e-Coli Bacteria
Pesticides & Glyphosate
VOC – Volatile Organic Compounds
Pharmaceutical Compounds
Bad Taste and Odours
and much more

Under the Bonnet
Inside view. Filter cartridges are easily replaced at low cost every few years. Low maintenance.
  • 1 Sediment Pre-Filter Made in USA
  • 2 Carbon Pre-Filter Made in USA
  • 3 Reverse Osmosis (RO) Membrane Made in USA
  • 4 Coconut Carbon Post-Filter Made in USA
  • A Diverter for easy connection to Kitchen/Laundry/Bathroom Tap
  • B 1/4” white tube – tap water input Food Grade
  • C Pressure Gauge – indicates Optimal functioning at 40-60 psi mains water pressure
  • D 1/4” black tube – waste effluent Food Grade
  • E 1/4” blue tube – output of pure filtered water Food Grade


The multi-filter RO4 Reverse Osmosis system is designed for situations that demand utmost in drinking water purity and taste.
The system can filter approximately 400 litres per day. Typical use includes purifying water once per week, collecting and decanting into glass bottles and refrigerating or storing in glass or ceramic water dispensers. Purified Reverse osmosis water is great to take traveling or camping in stainless steel containers or bottles.

Have a Question?
Go for it…

Or call Hartgoods owner (Hartmut) directly on
0439 54 7788

Other Hartgoods Water Filter Technologies


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