Description
A New Era in Water Innovation
Effective December 1, 2025, LG Chem’s Water Solutions business entered a new phase under a renewed identity as NanoH2O Co., Ltd.
This transition represents a strategic evolution toward advancing next-generation water treatment technologies and strengthening long-term sustainability in global water solutions.
NanoH2O is more than a name—it represents a legacy of membrane innovation driven by nanotechnology breakthroughs that have shaped modern reverse osmosis performance standards.
Thin-Film Nanocomposite (TFN) Technology
- NanoH2O RO membranes use proprietary Thin-Film Nanocomposite (TFN) Technology, embedding benign nanomaterials on the membrane surface to enhance performance.
- This innovative approach is designed to increase membrane flux by up to 20% without compromising salt rejection.
Product Range
Seawater Reverse Osmosis (SWRO) Membranes
Lowering the Cost of Desalination
NanoH2O seawater RO membranes deliver industry-leading salt rejection and up to 20% more flow than conventional membrane technologies, 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.
| Product | Size (Diameter) | Active Membrane Area | Permeate Flow Rate | Stabilized Salt Rejection |
Stabilized Boron Rejection |
Data Sheets | |||
|---|---|---|---|---|---|---|---|---|---|
| mm | inch | ft² | m² | gpd | m³/d | % | % | ||
| SW 400 R G2 | 200 | 7.9 | 400 | 37 | 9,000 | 34.1 | 99.88 | 93 |
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| SW 440 R G2 | 200 | 7.9 | 440 | 41 | 9,900 | 37.5 | 99.88 | 93 |
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| SW 400 SR G2 | 200 | 7.9 | 400 | 37 | 6,000 | 22.7 | 99.89 | 93 |
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| SW 440 SR G2 | 200 | 7.9 | 440 | 41 | 6,600 | 25.0 | 99.89 | 93 |
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| SW 400 GR G2 | 200 | 7.9 | 400 | 37 | 7,500 | 28.4 | 99.89 | 93 |
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| SW 440 GR G2 | 200 | 7.9 | 440 | 41 | 8,250 | 31.2 | 99.89 | 93 |
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| SW 400 SR | 200 | 7.9 | 400 | 37 | 6,000 | 22.7 | 99.85 | 93 |
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| SW 440 SR | 200 | 7.9 | 440 | 41 | 6,600 | 25.0 | 99.85 | 93 |
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| SW 400 GR | 200 | 7.9 | 400 | 37 | 7,500 | 28.4 | 99.85 | 93 |
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| SW 440 GR | 200 | 7.9 | 440 | 41 | 8,250 | 31.2 | 99.85 | 93 |
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| SW 400 R | 200 | 7.9 | 400 | 37 | 9,000 | 34.1 | 99.85 | 93 |
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| SW 440 R | 200 | 7.9 | 440 | 41 | 9,900 | 37.5 | 99.85 | 93 |
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| SW 400 ES | 200 | 7.9 | 400 | 37 | 6,800 | 25.7 | 99.6 | 81 |
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| SW 440 ES | 200 | 7.9 | 440 | 41 | 7,480 | 28.3 | 99.6 | 81 |
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| SW 4040 R | 100 | 3.9 | 80 | 7.4 | 1,950 | 7.4 | 99.7 | – |
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Brackish Water Reverse Osmosis (BWRO) Membranes
Maximise Plant Uptime
NanoH2O brackish water RO membranes are used by major utilities and industrial end-users worldwide. TFN technology, combined with intrinsic anti-fouling properties, delivers reliable performance and reduced operational downtime for a lower total cost of plant ownership.
Premium
MaxRO R
Highest-rejection BWRO membrane with the industry’s first 36 mil ultra-low dP (ULD) spacer.
Advanced
BW R G2
Highest rejection and high durability with a low dP spacer.
BW AFR G2
Anti-fouling, superior rejection, with a low dP spacer.
BW ES G2
Superior flow and high durability with a low dP spacer.
BW MOST
Industry-leading flow for maximum BWRO energy savings.
Enhanced
BW R Dura
Superior rejection and high durability.
BW ES L
Energy saving with a low dP spacer.
Standard
BW R
High rejection.
BW ES
Energy saving.
BW AFR
Anti-fouling and high rejection.
| Product | Size (Diameter) | Active Membrane Area | Permeate Flow Rate | Stabilized Salt Rejection |
Data Sheets | |||
|---|---|---|---|---|---|---|---|---|
| mm | inch | ft² | m² | gpd | m³/d | % | ||
| MaxRO R | 200 | 7.9 | 400 | 37 | 11,500 | 43.5 | 99.8 |
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| BW 400 R G2 | 200 | 7.9 | 400 | 37 | 11,500 | 43.5 | 99.8 |
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| BW 440 R G2 | 200 | 7.9 | 440 | 41 | 12,650 | 47.9 | 99.8 |
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| BW 400 R Dura | 200 | 7.9 | 400 | 37 | 11,000 | 41.6 | 99.7 |
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| BW 440 R Dura | 200 | 7.9 | 440 | 41 | 12,100 | 45.8 | 99.7 |
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| BW 400 R | 200 | 7.9 | 400 | 37 | 10,500 | 39.7 | 99.6 |
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| BW 440 R | 200 | 7.9 | 440 | 41 | 11,550 | 43.7 | 99.6 |
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| BW 400 AFR G2 | 200 | 7.9 | 400 | 37 | 11,500 | 43.5 | 99.7 |
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| BW 400 AFR | 200 | 7.9 | 400 | 37 | 10,500 | 39.7 | 99.6 |
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| BW 400 ES G2 | 200 | 7.9 | 400 | 37 | 12,300 | 46.6 | 99.65 |
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| BW 440 ES G2 | 200 | 7.9 | 440 | 41 | 13,500 | 51.1 | 99.65 |
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| BW 400 ES L | 200 | 7.9 | 400 | 37 | 10,500 | 39.7 | 99.6 |
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| BW 440 ES L | 200 | 7.9 | 440 | 41 | 11,550 | 43.7 | 99.6 |
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| BW 400 ES | 200 | 7.9 | 400 | 37 | 10,500 | 39.7 | 99.6 |
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| BW 440 ES | 200 | 7.9 | 440 | 41 | 11,550 | 43.7 | 99.6 |
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| BW MOST | 200 | 7.9 | 400 | 37 | 13,200 | 49.9 | 98.5 |
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| BW MOST+ | 200 | 7.9 | 440 | 41 | 14,500 | 54.9 | 98.5 |
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| BW 4040 R | 100 | 3.9 | 85 | 7.9 | 2,500 | 9.5 | 99.6 |
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| BW 4021 R | 100 | 3.9 | 34 | 3.2 | 1,000 | 3.8 | 99.6 |
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| BW 2540 R | 60 | 2.4 | 22 | 2.0 | 750 | 2.8 | 99.6 |
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| BW 2521 R | 60 | 2.4 | 9 | 0.9 | 345 | 1.3 | 99.6 |
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| BW 4040 ES | 100 | 3.9 | 85 | 7.9 | 2,500 | 9.5 | 99.5 |
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| BW 4021 ES | 100 | 3.9 | 34 | 3.2 | 1,000 | 3.8 | 99.5 |
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| BW 2540 ES | 60 | 2.4 | 22 | 2.0 | 750 | 2.8 | 99.5 |
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| BW 2521 ES | 60 | 2.4 | 9 | 0.9 | 345 | 1.3 | 99.5 |
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| BW 4040 UES | 100 | 3.9 | 85 | 7.9 | 2,700 | 10.2 | 99.0 |
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| BW 4021 UES | 100 | 3.9 | 34 | 3.2 | 1,000 | 3.8 | 99.0 |
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| BW 2540 UES | 60 | 2.4 | 22 | 2.0 | 800 | 3.0 | 99.0 |
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| BW 2521 UES | 60 | 2.4 | 9 | 0.9 | 345 | 1.3 | 99.0 |
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| CW 4040 SF | 100 | 3.9 | 85 | 7.9 | 2,900 | 11.0 | 99.0 |
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Key Features & Benefits
- Advanced TFN Technology for enhanced membrane performance and reliability.
- Industry-leading salt rejection of up to 99.89%for superior permeate water quality.
- High durability with a low dP feed spacer for reduced pressure drop, stable operation, and extended membrane lifespan.
- Anti-fouling surface characteristics to minimise fouling and cleaning frequency.
- Energy-saving design that lowers operating costs and improves system efficiency.
- Suitable for seawater desalination, brackish water treatment, and industrial water purification applications.
- Manufactured using NSF-certified membrane materials for drinking water applications.
- Proven Performance Worldwide in desalination plants and demanding industrial environments.
- High Durability and Reliabilityfor reduced operating costs and long-term performance.
Applications
- Seawater desalination plants
- Brackish water treatment systems
- Industrial process water systems
- Municipal water supply systems
- Boiler feed water and utility water systems
- High-purity water production systems
Certifications & Compliance
NanoH2O reverse osmosis membranes comply with internationally recognised drinking-water material standards and are manufactured under strict quality-control systems.
- NSF/ANSI/CAN 61 Certified — meeting requirements for materials in contact with drinking water.
- Produced under globally recognised water-technology manufacturing standards.
- Designed for municipal, industrial, and commercial water-treatment applications.
While the product is not Halal certified, the RO membrane does not contain animal-derived raw materials, including porcine components, in its construction or manufacturing process.
ASD Engineering Support
As the sole authorised distributor in Malaysia, ASD provides genuine
- Genuine NanoH2O (LG Water Solutions) membrane supply
- Technical selection and system sizing support
Why NanoH2O
NanoH₂O™ membranes represent one of the most advanced RO technologies globally, developed through continuous innovation in membrane science and large-scale desalination deployment. The technology is widely adopted in major global water treatment projects due to its reliability, efficiency, and performance consistency.