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, our product ensures exceptional and reliable performance, meeting the demands of any setting with precision.
Active Membrane Area: With an impressive 31.97 ft², this advanced design maximizes efficiency and output, guaranteeing top-tier productivity and performance.
Average Permeated Flow: This membrane boasts an extraordinary flow rate of 800GPD, ensuring consistent, robust water processing capabilities for optimal operations.
Stable Rejection Rate: Our membrane consistently maintains a high rejection rate of 96%-97%, ensuring superior water quality and reliability with every use.
Function: Efficiently eliminates COD, BOD, and NH-N, significantly elevating water purity and quality, ensuring the highest standards of water treatment.
Home RO membrane variants available: Choose from 75GPD, 100GPD, 150GPD, and 200GPD to perfectly meet your specific requirements.
Commercial RO membrane ranges include: Offered in 300GPD, 400GPD, 600GPD, and 800GPD, catering to a wide spectrum of commercial demands seamlessly.
Industrial membrane models offered: Available in models 2521, 2540, 4021, 4040, and 8040, expertly crafted to satisfy diverse industrial requirements.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis components are meticulously designed for municipal water, tap water, and well water. They excel in desalination, 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
2-Excellent service paired with competitive pricing for nano membrane solutions.
3-Durable quality and stunning aesthetics define our nano membrane range.
4-Salt rejection rate is efficiently maintained between 30%-50%.
5-OEM services: Customized based on client requests with FREE design, label, packing, and size options for nano membranes.








Sandmonk Technology Co., Ltd., known affectionately as SAND.K, is passionately committed to revolutionizing water environmental technology. Through a strategic global supply chain, we lead with groundbreaking innovations that elevate industry benchmarks. We offer comprehensive, one-stop solutions specially tailored for small to medium-sized equipment manufacturers. Our dedication is evident through our cross-border e-commerce initiatives, extending our reach to a global audience in developing regions.
With pioneering independent research and development, paired with robust manufacturing capabilities, we stand as leaders in our field. Through precise data analysis, we deliver bespoke solutions for high salinity water challenges, forging new standards in water treatment excellence.
Our versatile solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and pioneering the reuse of treated wastewater. Moreover, our competitive pricing offers a distinctive advantage in the industry, delivering unmatched value 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. |