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SW30-4021 4" Dia. 21" Length Seawater Ro Membrane 4040 SWRO Equivalent of Filmetec Dupont Dow

4021 Seawater Reverse Osmosis Membrane | High-Salinity Water Desalination Solution
The 4021 Seawater Reverse Osmosis (SWRO) Membrane is designed for high-salinity water desalination, providing efficient and reliable water purification for industrial, commercial, and municipal applications. Engineered with advanced polyamide thin-film composite (TFC) technology, this membrane offers high salt rejection (≥99.4%), excellent durability, and superior performance in high-TDS environments.
  • JXSW4021

  • JX Purification

Availability:
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SEA WATER

JX manufactures seawater RO membranes in 4", 8 "  diameters that can treat seawater or high salinity water sources with 35,000 ppm. Our products are widely used for mega desalination plants, watermakers for private boats and commercial ships, and treating mining tailing water for reuse or discharge.

Series Model Diameter Product Flow Rate Rejection Boron Data Sheet
JXSW8040 JXSW8040-400 8 7500GPD 99.85% 92% JXSW-8040-400-L.pdf
JXSW8040-440 8 9900GPD 99.85% 92% JXSW-8040-440 (2).pdf
JXSW4021 JXSW4021 4 800GPD
99.4% 92%

Key Features
High salt rejection (≥99.4%) – Effectively removes dissolved salts, heavy metals, and contaminants
Optimized for high salinity – Performs well in seawater and high-TDS water sources
Energy-efficient operation – Reduces operating pressure and energy consumption
Anti-fouling design – Enhanced resistance to biofouling and scaling for extended membrane life

Applications
Seawater Desalination – Producing potable water from seawater for drinking and industrial use
Marine & Offshore – Desalination for ships, offshore platforms, and coastal communities
Industrial Water Treatment – High-purity water production for power plants, refineries, and manufacturing
Municipal & Emergency Water Supply – Reliable fresh water supply in coastal and remote areas

Why Choose Our 4040 SWRO Membrane?

  • Premium membrane material ensures long-lasting performance and high recovery rates

  • Cost-effective alternative to major brand membranes, maintaining high efficiency

  • Custom solutions available for various seawater desalination needs

Contact us today to optimize your seawater desalination system with our high-performance RO membranes!

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