LG BW 4040 R BWRO Membranes

Original price was: 287 $.Current price is: 250 $.

LG BW 4040 R BWRO membrane is part of the NanoH20™ product line and is designed for use in municipal and industrial applications. These membranes feature Thin Film Nanocomposite (TFN) technology, which provides superior filtration and anti-fouling properties, ensuring consistent and reliable performance.

These membranes have been tested in major utilities around the world and have proven to be highly effective and suitable for a wide range of applications where high-quality water filtration is required.

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Product details

LG BW 4040 R High Rejection BWRO membranes offer a combination of high rejection, reliability, and durability; suitable for high salinity brackish water and wastewater reuse application.

LG Chem’s NanoH2O™ brackish water RO membranes serve various municipal and industrial applications and major utilities around the world. LG BWRO membranes, all incorporated with innovative Thin Film Nanocomposite (TFN) technology, are offered in industry standard configurations and can easily fit into existing and new RO plants.


LG Chem Product: LG BW 4040 R
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,500 gpd (9.5 m³/d)
Applied Pressure: 225 psig (15.5 bar)
Stabilized Salt Rejection: 99.6%
Minimum Salt Rejection: 99.3%
Active Surface Area: 85 ft2  (7.9 m2)
Single Element Recovery: 15%
End Style: Standard Male PWT
Exterior: Hard Shell Fiberglass
Feed Spacer: 28 mil
Membrane Type: Thin Film Nanocomposite
Can Replace Elements: FilmTec BW30-4040
Hydranautics CPA2-4040
Hydranautics CPA5-LD-4040
Toray TM710


  • LG membranes have proven their quality, the brand has a good reputation
  • LG offers a complete brackish water range
  • Q+ Intuitively designed projection software
  • All membranes are incorporated with innovative Thin Film Nanocomposite (TFN) technology, reducing the cost of desalination while delivering superior water quality

Typical applications

  • Process water
  • Municipal industrial
  • Commercial applications

Downloadable PDF

LG BW 4040 R BWRO Membranes (English)