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, guaranteeing exceptional and reliable performance.
Active Membrane Area: With an expansive 31.97 ft², this design ensures maximum efficiency and output, optimizing productivity to its highest potential.
Average Permeated Flow: An unrivaled flow rate of 800GPD provides consistent and robust water processing capabilities, making it a cornerstone of reliability.
Stable Rejection Rate: Achieving a consistently high rejection rate of 96%-97%, it ensures superior water quality each time, setting a new standard for excellence.
Function: Efficiently purges COD, BOD, and NH-N, elevating the purity and quality of water to new heights.
Home RO membrane variants available: Choices ranging from 75GPD, 100GPD, 150GPD to 200GPD, ensuring an ideal solution for every need.
Commercial RO membrane ranges include: From 300GPD to 800GPD, these membranes cater to a wide spectrum of commercial requirements.
Industrial membrane models offered: Our offerings, including models 2521, 2540, 4021, 4040, and 8040, are masterfully designed to meet diverse industrial needs.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are precision-engineered for municipal, tap, and well water applications. They excel in desalination treatment, making them perfect for premium bottled water, direct drinking water, food processing, pharmaceutical production, and much more.
Product advantages
1-HJC NANO membrane-- NEVER CUT CORNERS/SUPREME MATERIALS
2-Excellent service and reasonable pricing for our nano membrane products, ensuring customer satisfaction.
3-Durable quality and aesthetically pleasing design characterize our nano membrane range.
4-Salt rejection rate 30%-50%, ensuring effective and efficient performance.
5-OEM services: Customized solutions based on client requests, including FREE design, labeling, packing, and sizing of nano membranes.








Sandmonk Technology Co., Ltd., fondly known as SAND.K, is passionately devoted to advancing water environmental technology. Leveraging a global supply chain, we lead with groundbreaking innovations that set new industry standards. We offer comprehensive, one-stop solutions tailored specifically for small to medium-sized equipment manufacturers. Our commitment is evident through our cross-border e-commerce initiatives, reaching a global audience in developing regions.
With pioneering independent research and development, combined with robust manufacturing capabilities, we stand as leaders in our field. Through precise data analysis, we deliver tailored solutions for regions facing high salinity water challenges, setting new benchmarks in water treatment standards.
Our versatile solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and pioneering reuse of treated wastewater. Furthermore, our competitive pricing offers a remarkable advantage within the industry, providing unparalleled 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. |