BW30-4040 Filmtec Brackish Water Membrane


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USA made BW30-4040 membrane suitable for brackish and non brackish water.

The Asprinn Filmtec BW-4040 Brackish Reverse Osmosis Membrane is an excellent choice as an alternative cartridge for industrial reverse osmosis water filters.

The membrane is constructed of Polyamide thin-film composite with a hard shell exterior.

  • Brackish Water Desalination Membrane
  • Membrane Made in USA with Filmtec Material
  • Compliant to NSF/ANSI 58
  • 4″ x 40″ Commercial Size Reverse Osmosis Membrane
  • 2000GPD Permeate Flow Rate


  • MgSO4 Rejection: >99%
  • NaCl Rejection: >96%
  • Permeate Flow: 2000 GPD +/- 10%



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