DuPont Introduces New Low-energy, Fouling-resistant Reverse Osmosis Element for Seawater Desalination

FilmTec™ SW30XLE-400/34 Reverse Osmosis Element is Designed to Tackle Biofouling Challenges in Seawater Reverse Osmosis Applications

   
WILMINGTON, Del., December 17, 2025 – DuPont (NYSE:DD) today announced the launch of a low-energy, fouling-resistant reverse osmosis element for seawater desalination: the FilmTec™ SW30XLE-400/34 reverse osmosis element.

Biofouling is a well-known challenge in reverse osmosis (RO) systems, leading to increased operational costs due to higher pressure drops and the need for more frequent chemical cleanings. This increase in maintenance not only impacts operational costs but can also reduce overall system efficiency.

The new FilmTec™ SW30XLE-400/34 reverse osmosis element has been specifically designed to tackle these biofouling challenges. Extensive validation studies at DuPont’s Global Water Technology Center in Tarragona have showcased its impressive performance under typical seawater conditions. Featuring the reliable high performance that you expect from FilmTec™ elements, the FilmTec™ SW30XLE-400/34 element demonstrates up to a 25% lower initial pressure drop compared to previous generation, which can help provide:

• Enhanced energy efficiency and operational performance
• Less downtime and cleaning frequency 

For more information on the FilmTec™ SW30XLE-400/34 element, visit our product pages for dry and wet elements.