surgeon washing hands with soap and water

DSU-H Ultrafilter


  • Market: Infection Control
  • Application: In-Line
  • Solution: Bacteria / Viruses / Endotoxins
  • Product Number: 70-0285 / 70-0286

The Nephros DSU-H Ultrafilter purifies EPA-quality water and makes it suitable for drinking, wound cleansing, surgical handwashing, and medical equipment cleaning. This model type is an in-line filter capable of retaining bacteria, viruses, and endotoxins for 180 days and ideal for proactive water management. The DSU-H Ultrafilter is FDA 510(k)-cleared as a Class II medical device.

Nephros DSU-H Dual Stage UltraFilter threaded

Features and Benefits

  • FDA-cleared as Class II filter to aid in infection control

  • Effective barrier for bacteria, viruses, and endotoxins

  • 0.005 micron pore size

  • Proprietary hollow-fiber membrane technology

  • Suitable for ligature-free environments

  • Ideal for proactive water management with no changeouts necessary during water events and outbreaks

  • Application at sinks, showers, manufacturing/healthcare equipment, and ice machines

  • Long, continuous 180-day (6-month) filter life

  • Available with quick-connect or 1/2″ threaded connections


  • Max Inlet Pressure*: 100psi (6.8 bar)
  • Material: Polysulfone
  • Pore Size: 0.005 Micron
  • Bacteria Retention: >1011 (B. diminuta)
  • Virus Retention: >108 (PhiX-174)
  • Endotoxin Retention: >105 (EU/ml)
  • Dimensions: 13” L x 2.5” D
  • Surface Area: 2.8 m2
  • Clean Water Flow Rate: 3.0 GPM at 60psi (4 bar)
  • Connections: Quick Connect (CPC (APC)); Threaded (1/2 NPSM)
  • Replacement: Up to 6 months
  • Configuration: Dual-Stage Filtration

* For inlet pressures above 75psi, a pressure regulator should be installed (≤75psi) to account for plumbing system pressure fluctuations (typically up to+/- 25psi). A hammer arrester should be installed in applications where water hammer may be present.

DSU-H filters have been validated by a 3rd-party certified laboratory, in accordance with ASTM F838-20 “Standard Test Method for Determining Bacteria Retention of Membrane Filters Utilized for Liquid Filtration,” with total bacteria retention as defined by “Sterilizing Grade” filter. Nephros DSU-H Validation Report: NEPH020422. For additional reference see: FDA “Guidance for Industry: Sterile Drug Products Produced by Aseptic Processing-Current Good Manufacturing Practice,” September 2004.

Associated Kits & Components

  • 70-0290 Install Kit – Ice Machine DSU-H
  • 70-0291 Install Kit – Shower SSU-H
  • 70-0292 Install Kit – Sink DSU-H
  • 70-0293 Disinfection Kit – In-line
  • 70-0298F Ice Machine Evaluation Kit (4 DSU)
  • 70-0901 Wall Clips
  • 70-0902 Quick Connect with Valve
  • 70-5000 Filter Evaluation Service

Want to know more?

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