N-TECH Seawater RO Membranes Custom Branded Bulk Solutions for Desalination High-Salt Applications

Elevate your seawater desalination projects with N-TECH’s seawater reverse osmosis (RO) membranes—available for bulk orders with your brand customization. Engineered for high-salt challenges (up to 32,000ppm NaCl), our membranes deliver superior desalination, low energy use, and long lifespans. Perfect for seawater desalination, industrial wastewater reuse, and material concentration.
Bulk & Branding: Produce large batches with your logo, packaging, and specs—strengthen your market identity.
Proven Performance: Up to 99.85% salt rejection, low energy consumption, and durable polysulfone support layers.
Tailored Series: Choose from SW-HR (superior rejection), SW-HRLE (high rejection + low energy), and SW-XLE (high flow + extra low energy) for diverse applications.
Versatile Sizes: 2.5”, 4”, 8” diameters fit standard systems—ideal for seawater desalination plants, industrial facilities, and more.
Desalination Plant, Saudi Arabia: Partnered for 500+ SW-HR 400 membranes under their brand. 99.85% rejection met strict standards, reducing post-treatment costs by 30% and securing a 5-year contract.
Industrial Wastewater Provider, Dubai: Ordered 300 SW-XLE 400 membranes with custom labels. High flow (9000 GPD) and 99.8% rejection handled 20,000ppm salt wastewater, earning industry recognition.
Marine Research Lab, Florida: Used SW-4040 membranes (branded as their own) for seawater studies. 99.8% rejection ensured pure water for experiments, driving 2x grant funding.
Product | Permeate Flow (GPD/m³/d) | Stabilized Rejection (%) | Min Rejection (%) | Membrane Area (ft²/m²) | Feed Spacer (mil) |
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SW-HR 400 | 7000 (26.5) | 99.85 | 99.75 | 400 (37) | 28 |
SW-HR 440 | 7700 (29.1) | 99.85 | 99.75 | 440 (41) | 28 |
SW-HRLE 400 | 7500 (28.4) | 99.80 | 99.70 | 400 (37) | 28 |
SW-HRLE 400-34 | 6500 (24.6) | 99.75 | 99.70 | 400 (37) | 34 |
SW-HRLE 440 | 8000 (30.3) | 99.80 | 99.70 | 440 (41) | 28 |
SW-XLE 400 | 9000 (34.1) | 99.80 | 99.70 | 400 (37) | 28 |
SW-XLE 440 | 9900 (37.5) | 99.80 | 99.70 | 440 (41) | 28 |
Product | Permeate Flow (GPD/m³/d) | Stabilized Rejection (%) | Min Rejection (%) | Membrane Area (ft²/m²) | Feed Spacer (mil) |
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SW-4040 | 1800 (6.8) | 99.8 | 99.6 | 85 (7.9) | 28 |
SW-XLE 4040 | 2100 (7.9) | 99.7 | 99.5 | 85 (7.9) | 28 |
Product | Permeate Flow (GPD/m³/d) | Stabilized Rejection (%) | Min Rejection (%) | Membrane Area (ft²/m²) | Feed Spacer (mil) |
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SW-40212 | 700 (2.7) | 99.7 | 99.5 | 36 (3.3) | 28 |
SW-25401 | 500 (1.9) | 99.7 | 99.5 | 28 (2.6) | 28 |
Test condition 1 : 32000ppm NaCl, 800psi(55bar), 77°F (25°C), pH 8, 8% Recovery.
Test condition 2 : 32000ppm NaCl, 800psi(55bar), 77°F (25°C), pH 8, 5% Recovery.

