DOW FILMTEC™ Nanofiltration 4" Elements

DOW FILMTEC™ Nanofiltration 4" Elements allow selective separation of organics and salts for medium-sized industrial and municipal water treatment plants that produce less than approximately 10 gpm (2300 L/h) of permeate.


DOW FILMTEC™ NF270-4040 Elements are ideal for removing a high percentage of TOC and THM precursors with medium to high salt passage and medium hardness passage in commercial systems. The NF270 nanofiltration membrane is an ideal choice for surface water and ground water where good organic removal is desired with partial softening. DOW FILMTEC NF270-4040 elements are tape-wrapped.

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Used In:

  • Production of municipal drinking water


  • Good organic (NOM) removal
  • Partial softening preserves water character
  • High flux results in high yields


  • Asia Pacific
  • Europe
  • Latin America
  • North America