Culligan ULF line includes a full range of models for surface , well and sea water treatment capable to produce up to 140 m3/h.


Culligan ULF has been designed to provide a customized, modular and compact solution for the removal of suspended solids, micro-pollutants and most bacteria and viruses (up to 4 log).


All the units are assembled (both hydraulically and electrically) on a frame in the Culligan plant in Italy to make installation easier and facilitate starting.

Advantages of ULF systems

  • All the possible configurations are pre-assembled on skids and interconnected with each other.
  • Extremely flexible thanks to a complete range of options.
  • Suitable for use with well water and with surface water and with turbidity up to 300 NTU.
  • Recovery rates up to 98.5%.
  • Effective technical assistance thanks to maximum accessibility of parts and after-sales service worldwide.
  • Made in Italy and fully compliant with CE standards.


  • Self-cleaning or basket filter, at inlet, with degree of filtration 110 μm as membrane protection.
  • Vertical multistage centrifugal feed and backwash pump in stainless steel.
  • CEB vertical multistage centrifugal wash pump in stainless steel.
  • Metering pumps for correct dosing the chemicals needed during the washing and disinfection phases.
  • Cross flow mode to also treat water loaded with turbidity values up to 300 NTU.
  • Air backwashing system equipped with vane compressor or side channel blower.
  • PLC electric control panel with dedicated software pre-assembled on the frame; alternatively the unit can be arranged to be managed by an external PLC.

Thanks to a modular system, Culligan is able to offer this high quality product, configurable with all the options needed to meet multiple needs and provide a quick response to the market.

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For more information on Culligan’s MBR technology