Seawater Reverse Osmosis

Lowering the Cost of Desalination

NanoH2O™ seawater RO membranes deliver the industry's highest salt rejection and 20% higher flow compared to conventional membranes, enabling lower desalination costs and superior water quality.

  • Next Generation Series

    • SW SR G2, SW GR G2, SW R G2

      Next generation membranes with industry’s highest salt rejection of up to 99.89%

  • 1st Generation Series

    • SW SR, SW GR, SW R

      High rejection membranes ideal for high feed TDS and high permeate quality requirements

    • SW ES

      Energy-saving membranes ideal for low feed TDS and low-temperature seawater applications

SWRO Membrane Portfolio

  • The positioning of each product does not equate to an absolute value difference between each of the products and performance features shown (energy savings, salt removal demand) and is for illustrative purposes only.
  • The positioning of each product may vary depending on the operating conditions.
Product Size (Diameter) Active Membrane Area Permeate Flow Rate Stabilized
Salt Rejection
Stabilized
Boron Rejection
Data Sheets
mm inch ft² gpd m³/d % %
SW 400 R G2 200 7.9 400 37 9,000 34.1 99.88 93 Download
SW 440 R G2 200 7.9 440 41 9,900 37.5 99.88 93 Download
SW 400 SR G2 200 7.9 400 37 6,000 22.7 99.89 93 Download
SW 440 SR G2 200 7.9 440 41 6,600 25.0 99.89 93 Download
SW 400 GR G2 200 7.9 400 37 7,500 28.4 99.89 93 Download
SW 440 GR G2 200 7.9 440 41 8,250 31.2 99.89 93 Download
SW 400 SR 200 7.9 400 37 6,000 22.7 99.85 93 Download
SW 440 SR 200 7.9 440 41 6,600 25.0 99.85 93 Download
SW 400 GR 200 7.9 400 37 7,500 28.4 99.85 93 Download
SW 440 GR 200 7.9 440 41 8,250 31.2 99.85 93 Download
SW 400 R 200 7.9 400 37 9,000 34.1 99.85 93 Download
SW 440 R 200 7.9 440 41 6,600 37.5 99.89 93 Download
SW 400 ES 200 7.9 400 37 6,800 25.7 99.6 81 Download
SW 440 ES 200 7.9 440 41 7,480 28.3 99.6 81 Download
SW 4040 R 100 3.9 80 7.4 1,950 7.4 99.7 Download

Product
Comparison Tool

Use the product comparison tool below to find equivalent RO membrane elements.