Model |
Pressure(psi/Mpa) |
Effective Membrane Area(ft²/m²) |
Flow Rate(GPD/m/d) |
Salt Rejection(%) |
Type OfSolution |
NF90-4040 |
70/.0.48 |
82/7.6 |
1400/5.3
2000/7.6 |
85-95
≥99 |
NaCL
MgSO4 |
NF90-8040 |
400/37 |
7500/28.4 |
85-95 |
NaCL |
10000/38 |
≥99 |
MgSO4 |
NF150-4040 |
82/7.6 |
1610/6.1
1910/7.2 |
50-70
≥99 |
NaCL
MgSO4 |
NF150-8040 |
400/37 |
8250/31.2 |
50-70 |
NaCL |
9780/36.8 |
≥99 |
MgSO4 |
NF280-4040 |
82/7.6 |
2925/11.1 |
40-60 |
NaCL |
2500/9.4 |
≥97 |
MgSO4 |
NF280-8040 |
400/37 |
14700/55.6 |
40-60 |
NaCL |
12500/47.3 |
≥97 |
MgSO4 |
NF500-4040 |
82/7.6 |
2700/10.2 |
≥90 |
MgSO4 |
NF500-8040 |
400/37 |
13200/50 |
≥90 |
MgSO4 |
Versatile Applications
Applicable Industries: Expertly crafted for seamless integration into Commercial Use.
Application: Specifically engineered for high TDS film membrane applications, this product guarantees exceptional and reliable performance, ensuring the best results in challenging conditions.
Active Membrane Area: Boasting an impressive 31.97 ft², this innovative design maximizes efficiency and output, ensuring peak productivity and performance in every use.
Average Permeated Flow: Delivers an extraordinary 800GPD, providing consistent and robust water processing capabilities, making it ideal for large scale requirements.
Stable Rejection Rate: Maintains a consistently high rate of 96%-97%, delivering superior water quality with each use, ensuring health and safety standards are always met.
Function: Efficiently eliminates COD, BOD, and NH-N, significantly enhancing the purity and quality of water, offering a cleaner and healthier solution.
Home RO membrane variants available: With options like 75GPD, 100GPD, 150GPD, and 200GPD, we ensure a perfect fit for every requirement, catering to varied needs with precision.
Commercial RO membrane ranges include: 300GPD, 400GPD, 600GPD, and 800GPD, addressing a wide spectrum of commercial demands with exceptional performance and reliability.
Industrial membrane models offered: 2521, 2540, 4021, 4040, and 8040, expertly designed to meet diverse industrial needs with unmatched efficiency.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are meticulously designed for applications in municipal water, tap water, and well water. They deliver unparalleled desalination treatment, making them the ideal choice for premium bottled water, direct drinking water, food processing, pharmaceutical production, and more.
Product advantages
1-HJC NANO membrane -- NEVER CUT CORNERS/SUPREME MATERIALS, ensuring durability and reliable performance.
2-Excellent service and reasonable price for nano membrane, providing outstanding customer satisfaction and value.
3-Durable quality and perfect looking for nano membrane, blending functionality with aesthetics seamlessly.
4-Salt rejection rate 30%-50%, offering efficient performance and enhancing water quality.
5-OEM services: BASED ON CLIENT REQUEST (FREE design, LABEL, PACKING, SIZE OF NANO MEMBRANE), tailored to meet specific client needs and preferences.








Sandmonk Technology Co., Ltd., affectionately known as SAND.K, is passionately committed to advancing water environmental technology. By leveraging a global supply chain, we lead the way with pioneering innovations that redefine industry standards, setting new benchmarks. We provide comprehensive, one-stop solutions specifically tailored for small to medium-sized equipment manufacturers. Our dedication is evident through our cross-border e-commerce initiatives, extending our influence to a global audience, particularly in developing regions.
With cutting-edge independent research and development combined with robust manufacturing capabilities, we proudly stand as leaders in our field, driving innovation and excellence. Through meticulous data analysis, we deliver custom solutions for regions with high salinity water challenges, setting new benchmarks in water treatment standards and ensuring optimal performance.
Our versatile solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and the innovative reuse of treated wastewater, showcasing our commitment to sustainable practices. Furthermore, our competitive pricing offers a distinctive edge within the industry, providing unmatched value and quality to our clients.

QUESTION |
ANSWER |
Are you a factory or trading company? |
Yes, we have our own factory. |
Can you offer OEM service? |
Yes, OEM is OK. |
Can I get samples from you factory? |
Sure. We are pleased to. |
What would you do if some quality problem occur? |
We will be responsible to all quality problem. |