DOW FILMTEC™ Tap Water Reverse Osmosis < 4" Elements

DOW FILMTEC™ Tap Water Reverse Osmosis Elements feature advanced membrane technology and offer outstanding reliability and consistency. Our automated fabrication process allows precise production of every element to tight, pre-defined specifications, helping customers develop and maintain brand recognition along with a reputation for building systems that reliably provide low-impurity drinking water.

DOW FILMTEC™ TW30-1812-50

DOW FILMTEC™ TW30-1812-50 Elements for home drinking water treatment units produce 50 GPD (7.9 L/h) of permeate with 98% stabilized salt rejection at standard test conditions. They are shipped dry for convenient handling and long shelf-life. Dow’s next generation elements are a fully compatible replacement for existing DOW FILMTEC residential RO elements. DOW FILMTEC TW30-1812-50 elements have been tested and certified by NSF International against NSF/ANSI Standard 58 for material requirements only for safe use in drinking water applications.

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Used In:

  • Under the sink water treatment
  • Point-of-use reverse osmosis water treatment systems
  • Production of home drinking water


  • High flux results in great yield (more water)
  • Automated fabrication for precision, consistency, and reliability
  • Shipped dry for convenience and long shelf life


  • Asia Pacific
  • Europe
  • Latin America
  • North America