MRO-4-LP Series Commercial Reverse Osmosis System


The MARLO MRO-4-LP Series Commercial Reverse Osmosis system offers a low-pressure, energy-saving design for light commercial water purification applications requiring an economical means for high-purity water. Nominal output capacities of 3,600 - 16,200 GPD. These units come standard with a solid-state digital controller and automatic inlet shut-off valve, among many other standard and optional features.

Low pressure, energy-saving design for light commercial water treatment applications requiring an economical means for high-purity water. Nominal output capacities of 3,600 - 16,200 GPD.

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  • 5-micron sediment pre-filter housing
  • Automatic inlet shut-off valve
  • Solid-state digital controller
  • Product water conductivity monitor
  • Operating pressure gauges
  • Product and concentrate flow meters
  • Concentrate and recycle flow control valves
  • Low inlet pressure switch with shutdown alarm
  • Pressurized storage vessels
  • Atmospheric storage tanks with level control and re-pressurization pump
  • Water softeners and carbon filter pretreatment
  • Skid-mounted packages with pre/post treatment equipment