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RO 4000 Benchtop Reverse Osmosis Water Filter System with American Alkaline


  • Removes Heavy Metals
  • Chlorine & Fluoride Gone
  • pH level 8.5 - 9.5

    The RO 4000 4 Stage Reverse Osmosis Water Filter System with American Alkaline connects directly to the tap faucet with no mains plumbing required. It has been made using NSF-certified, premium components and is fully portable. It is both hand-built and tested in Australia and includes a 5-year warranty*. 

    The RO 4000 4 Stage Reverse Osmosis Water Filter System with American Alkaline removes contaminants that are of concern to the consumers – such as chlorine, pesticides, and heavy metals.

    The new fourth stage inline Alkaliser Filter provides enhanced water that is both energised and mineralised. This healthy inclusion to this system re-introduces minerals such as sodium, magnesium, calcium, and potassium, raises the pH level (between 8 – 10pH), and lowers ORP (Oxidation Reduction Potential).

    This system meets The WaterMark specification AS/NZS 3497:1998 Amdt 1 2001 Drinking water treatment units—Plumbing requirements. Certificate Number 23124. 

    What Makes it Unique? 

    What makes this complete range of RO 4000 Systems so unique is that we have dismantled this system into small pieces on the workbench, identified any possible issues, and then rebuilt our own special RO 4000 complete with a massive 100 GPD membrane which is double the size of any other membrane normally used.
    Then we added the flush valve/flow restrictor, with more and more contamination found in our water supplies nowadays, all that muck builds up inside filters while they operate.  

    Filtration Process: 

    Stage 1 – Carbon Pre-Filter Made in USA
    Removes particulate matter, chlorine, and other organic pollutants for membrane protection.


    Stage 2 – Ultrafine TFC RO Membrane Made in USA
    Screens to 0.0005 microns, filtering viruses, bacteria and parasites. Repels heavy metals and removes fluoride and hydrocarbons.


    Stage 3 – Carbon Post Filter Made in USA
    Polishing filter results in great tasting, pure water.


    Stage 4 – Alkaliser Filter Made in USA
    Alkalising and mineralising filter – raises pH and lowers ORP (Oxidation Reduction Potential).


    Maintenance And Replacement Cartridges 

    After 12 months, expect that the filters have accumulated enough sludge resulting in a decline in their efficiency. We encourage you to replace your cartridges as outlined below: 

    We recommend you renew & replace cartridge 1 annually 

    Replace cartridge 2 with the existing cartridge 4 as it only polishes up the water so still in good condition

    Then renew & replace cartridge 4 

    pH test the alkaline cartridge annually and only replace it when the Alkalinity drops lower than what you require 

    Only renew the RO Membrane every 4 - 6 years or in HARSH water areas replace it when water quality drops or TDS increases. 

    Package Includes:

    • IT001375 Plastic Cover RO  4000
    • IT001374 Plastic Base RO 4000
    • IT001172 Diverter Lever 1/4 Brass
    • IT000685 CTop Adaptor
    • IT000669 CTop Hose Cont.White 1mtr 1/4"
    • IT000675 CTop Hose Cont. Black 1mtr 1/4
    • IT000676 CTop Soft Hose Cont. Blue 1mtr 1/4"
    • IT001702 Gauge 40mm WS Logo 1/8 150PSI Liquid WS/logo (A)
    • IT002490 Bulkhead Union 1/4 x 1/4
    • IT002543 Gauge Adaptor 1/4 tube x 1/8 Female thread
    • IT000195 QChange GAC WL5540 5 Mic
    • IT002761 WS QC5 Membrane USA 2
    • IT002999K Series Inline Alkalising Filter 11" BB
    • IT000985 JG Rigid Elbow White 1/4 tube x 1/4 male NPT
    • IT002411 Membrane to Membrane Double Clip 2.5" x 2.5"
    • IT002497 Bracket to Membrane Single Clip 2.5"
    • IT000998 JG Equal Tee - White 1/4
    • IT000967 JG Stem to Tube Elbow 1/4 x 1/4
    • IT0025952 in 1 Flush Valve - 200ML
    • IT000236 QChange Head (WL-NV-1/4)F Threaded
    • IT001048 JG Locking Clips 1/49
    • ASM

    Instructions and Manuals: 

    RO 4000 Benchtop Reverse Osmosis Water Filter System with American Alkaline  Manual