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: Precision-engineered to seamlessly integrate into Commercial Use, ensuring flawless functionality and performance.
Application: This membrane is the epitome of engineering excellence, designed specifically for high TDS film membrane applications. It consistently ensures exceptional and reliable performance, setting new standards in the industry.
Active Membrane Area: With an impressive 31.97 ft², this design is crafted to maximize both efficiency and output, ensuring that peak productivity is achieved consistently.
Average Permeated Flow: With a remarkable delivery of 800GPD, this system assures robust and consistent water processing capabilities, catering to all your needs.
Stable Rejection Rate: Achieving an exceptional rate of 96%-97%, this membrane guarantees superior water quality and reliable performance with every use, assuring peace of mind.
Function: Efficiently purifying water by eliminating COD, BOD, and NH-N, it significantly enhances water purity and quality, ensuring safety and satisfaction.
Home RO membrane variants available: With options of 75GPD, 100GPD, 150GPD, and 200GPD, Sandmonk ensures that there is a perfect fit for every specific home requirement.
Commercial RO membrane ranges include: Offering a spectrum from 300GPD to 800GPD, these solutions perfectly address a broad range of commercial demands, making them ideal for business use.
Industrial membrane models offered: Including 2521, 2540, 4021, 4040, and 8040, these expertly designed models are crafted to meet a diverse array of industrial needs with precision.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are precision-engineered for municipal, tap, and well water applications. Offering unparalleled desalination treatment, they are the top choice for premium bottled water, direct drinking water, food processing, pharmaceutical production, and many other uses.
Product advantages
1-HJC NANO membrane—UNCOMPROMISING QUALITY/SUPREME MATERIALS
2-Exceptional service paired with competitive pricing for nano membranes
3-Enduring quality and aesthetically pleasing design for every nano membrane
4-Impressive salt rejection rate between 30%-50%
5-OEM services: CUSTOMIZED ON CLIENT REQUEST (Includes complimentary design, label, packaging, and sizing of nano membranes)








Sandmonk Technology Co., Ltd., also known as SAND.K, is a trailblazer in water environmental technology. Through leveraging a robust global supply chain, we are at the forefront with pioneering innovations that continually redefine industry standards. We offer comprehensive, one-stop solutions meticulously designed for small to medium-sized equipment manufacturers. Our commitment is evident in our cross-border e-commerce initiatives, expanding our influence to a global audience in developing regions.
With pioneering independent research and development capabilities coupled with robust manufacturing prowess, we are at the helm of our field. By harnessing meticulous data analysis, we deliver custom solutions for regions grappling with high salinity water challenges, setting new benchmarks in water treatment excellence.
Our versatile solutions span seawater desalination, waste leachate treatment, drinking water purification, and the innovative reuse of treated wastewater. Moreover, our competitively priced offerings provide an unmatched advantage within the industry, delivering exceptional 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. |