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Reverse Osmosis System


Product code — PRORO16

Reverse osmosis offers the ultimate water purification and treatment for both coffee and steam applications. RO will effectively remove up to 99% of TDS (Total Dissolved Solids) from the water. It is the only water treatment process that removes chlorides which, left untreated, will corrode and damage equipment leading to expensive replacement costs, service calls and inevitably, kitchen downtime. Removing all minerals, particulates and chlorine from the water provides a consistent baseline of ‘clean’ water to work with. All PRORO models (excluding ware-washing) incorporate a remineralisation post-filter for taste optimisation for high-quality coffee, time after time. Combining the right equipment, beans and water recipe delivers truly exceptional results.

  • 1 x Sediment pre-filter.
  • 1 x GAC filter.
  • 1 x Carbon block filter.
  • 1 x 125 gpd RO membrane.
  • 1 x Remin post-filter.
  • Integrated 4.4 litre tank.
  • Removes bacteria, herbicides, pesticides, organic matter, inorganic matter, metal ions, radioactive substances, microplactics in water.
  • Intelligent water control –
    Digital control, showing key information such as TDS/remaining cartridge life of the raw and purified water.
  • High Efficiency – for every 1 litre of purified water produced, only 1 litre of impure water goes to drain* *pressure dependent.
  • Variable blend options (blend set to zero).
  • Has 4.4 litres of stored purified water for immediate use, with additional 16 – 18 lph produced.
  • Quick and easy cartridge replacement.
  • Supplied with high quality drinking tap for caraffe water, full installation kit and air gap for installation compliance.



  • Low volume commercial coffee, catering and purified water.


Electrical Supply:

  • 240V / 50Hz 3 pin plug with inline transformer.

390 x 235 x 385 HxWxD (mm)

Lphr – 16 – 18*

Water Pressure (bar) – 1.4 – 5

Temperature (°C) – 2 – 49

Connection – 1/4”


Replacement Cartidges:

  • PRORO16 rep cart set – PRORO16RC
  • PRORO16 rep membrane PRORO16RM
  • Sediment/turbidity 99.9%
  • Perfluorooctane Sulphonate (PFOS) 99.1%
  • Calcium 99.8%
  • VOCs/TOCs 99.1%
  • Cyanide 97.1%
  • Sodium 99.1%
  • Pesticides 99.9%
  • Chromate 99.6%
  • Magnesium 99.5%
  • Odour 99.8%
  • Sulphate 99.4%
  • Ammonium 98.6%
  • E.Coli 100%
  • Thiosulfate 99.6%
  • Nickel 99.8%
  • Giardia 100%
  • Silicate 98.2%
  • Aluminium 99.0%
  • Cryptosporidium 100%
  • Lead 99%
  • Manganese 99.4%
  • Ferro cyanide 98.9%
  • Copper 99.9%
  • Potassium 99.5%
  • Arsenic 99.3%
  • Zinc 99.2%
  • Bicarbonate 99.0%
  • Selenium 99.5%
  • Cadmium 99.7%
  • Arsenic 99.8%
  • Asbestos 99.2%
  • Strontitan 99.5%
  • Mercury 99.1%
  • Protozoa 99.6%
  • Silver 98.9%
  • Bromide 99.0%
  • Amoebic Cysts 99.2%
  • Chloride 99.9%
  • Iron 99.5%
  • Nirate 99.1%
  • Barium 99.3%
  • Bacteria 99.1%
  • Chromium 99.3%
  • Oestrogen 99.4%
  • Flouride 99.1%
  • Phosphate 99.2%
  • Borate 99.3%

Composite MW-CTO-PP pre-filter:

  • The high capacity pure polypropylene (PP) fibre sediment pre-filter, screens out particles down to 5 microns, including sand, silt and rust, to improve the quality of the water before it enters the membrane to prevent it from fouling.
  • The CTO part is composed of high-performance activated carbon that absorbs 99% of chemical impurities helping to prevent the membrane from chlorine/chloride attack.


Composite MW-CTO-PP post-filter:

  • The CTO high high-performance activated carbon and high capacity pure polypropylene fibre sediment post-filter, gives a final polish of the water which is essential in ware-washing applications.


3 stage Remineralisation post-filter:

  • Stage 1 – gives the water a final polish prior to drinking.
  • Stage 2 – releases nourishing minerals such as potassium, calcium and magnesium which are flavour carriers.
  • Stage 3 – adjusts the pH balance of the water to protect the coffee machine against corrosion.



  • Your PRORO membrane is the heart of the reverse osmosis system, it uses a 0.001 micron thin film composite (TFC) membrane. This semi-permeable membrane will effectively remove up to 99% of TDS (total dissolved salts) including heavy metals such as arsenic, copper, nitrates and lead, as well as bacteria & Cysts, as per E .Coli, Giardia and cryptosporidium.

Designed with the Earth in mind.

Every Monarch Water product has been carefully designed to minimise its environmental impact.

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