DUPONT FILMTEC Seawater RO Membranes

DUPONT FILMTEC Seawater Reverse Osmosis (RO) Membranes Elements

The use of membranes in the water treatment industry is standardized practice, due to the requirement of filtration to take place in removing unwanted impurities from water. Membrane water treatment is done through the use of barriers that allow only specific substances to pass through the small pores of the membrane while not allowing other types of contaminants. There are a variety of membranes in use throughout the market which act as processes in treating groundwater, surface water, and wastewater to a level that is acceptable for industries and especially consumption. It is a rapidly growing industry, as a result of the need to combat low quality water sources such as rivers, lakes, wells, streams, and the ocean, in order to provide more alternative methods in supplying healthy, safe, steady, and accessible water to the masses. 

As per mentioned, there are different types of membranes which can be utilized for water treatment. The factors that necessitate which membrane would be more effective relies upon the types of contaminants existing in the water, and the desired water quality by the user. The two most common type of membranes used in the industry are:

  • Membrane Filtration (ultrafiltration, microfiltration) works by eliminating particles (mainly suspended solids) from water through operating under pressure.
  • Reverse Osmosis/ Nanofiltration Membranes that operates similarly in producing freshwater from the prevention of larger dissolved molecules from passing through the small pores of the permeable membrane, while allowing the pure water to flow through. 


  • Size: 2.5"x40"
  • SW30-2521
  • SW30-2514
  • SW30-2540


  • Size: 4"x40"
  • SW30-4040
  • SW30-4021
  • SW30HRLE-4040


  • Size: 8"x40"
  • Area: 365, 400 & 440 ft2
  • High reject. (SW30HRLE)
  • Low Energy (SW30XLE)

Pure Aqua has over 20 years of experience as a global supplier of first-rate reverse osmosis membranes for seawater treatment applications. These membranes are designed to provide unmatched filtration capabilities via a reverse osmosis system features that maximizes performance such as low energy usage, high rejection, high flow rate, and more. 

Dupont Filmtec Seawater RO Membranes

Benefits of DUPONT FilmTec Seawater RO Membrane Elements

  • Seawater may be used to make drinking water.
  • Our membranes ensure high-quality permeate due to high salt rejection.
  • High boron rejection rate, allowing consumers to satisfy any water quality regulations.
  • Due to their high cleanability, SW30 elements have a longer life span.
  • When running at lower loads, machine costs and operating expenses are reduced.
  • Interconnected components come in 8” sizes and have the following advantages