Model |
Adapted Pressure(psi/Mpa/bar) |
Salt Rejection(%) |
Flow Rate(GPD/m/d) |
Effective Membrane(ft²/m²) |
Boron Rejection(%) |
Size(inch) |
SW4021-LE |
800/5.52/55.2 |
99.5 |
640/2.4 |
33/3.1 |
|
4.0*21 |
SW2521-LE |
240/0.9 |
12/1.1 |
2.5*21 |
SW2540-LE |
540/2.0 |
28/2.6 |
2.5*40 |
SW4021-HR |
99.6 |
540/2.0 |
33/3.1 |
4.0*21 |
SW2521-HR |
190/0.72 |
12/1.1 |
2.5*21 |
SW2540-HR |
450/1.7 |
28/2.6 |
2.5*40 |
SW4021-HRLE |
99.6 |
640/2.4 |
33/3.1 |
4.0*21 |
SW2521-HRLE |
240/0.9 |
12/1.1 |
2.5*21 |
SW2540-HRLE |
540/2.0 |
28/2.6 |
2.5*40 |
SW4040-HR |
99.7 |
1180/4.5 |
82/7.6 |
4.0*40 |
SW8040-HR |
99.8 |
6900/26 |
400/37 |
92 |
8.0*40 |
SW8040-HRP |
7500/28 |
440/41 |
8.0*40 |
SW4040-HRLE |
99.7 |
1450/5.5 |
82/7.6 |
|
4.0*40 |
SW8040-HRLE |
99.8 |
7500/28 |
400/37 |
92 |
8.0*40 |
SW8040-HRLEP |
8200/31 |
440/41 |
8.0*40 |
SW8040-HRFR |
99.8 |
6000/23 |
400/37 |
8.0*40 |
SW4040-XHR |
99.75 |
1180/4.5 |
82/7.6 |
|
4.0*40 |
SW8040-XHR |
99.82 |
6000/23 |
400/37 |
92 |
8.0*40 |
SW8040-XHRP |
6600/25 |
440/41 |
8.0*40 |
Versatile Applications
Applicable Industries: Expertly engineered for optimal Commercial Use.
Application: Masterfully crafted for high TDS film membrane applications, this product delivers unparalleled performance, ensuring reliability and efficiency in every use.
Active Membrane Area: Boasting an impressive 31.97 ft², this design maximizes efficiency, enhancing output and ensuring premium performance in all operations.
Average Permeated Flow: With a stellar 800GPD, it guarantees consistent, reliable water processing capabilities that meet high standards.
Stable Rejection Rate: A consistently high 96%-97%, this feature guarantees superior water quality with every use, making it a trusted choice.
Function: Efficient in removing COD, BOD, and NH-N, significantly enhancing overall water purity and ensuring safe, clean water every time.
Home RO membrane options available: Choose from 75GPD, 100GPD, 150GPD, and 200GPD variants that offer personalized solutions to meet any household needs.
Commercial RO membrane ranges include: 300GPD, 400GPD, 600GPD, and 800GPD, catering to diverse commercial demands with precision and reliability.
Industrial membrane models offered: 2521, 2540, 4021, 4040, and 8040, engineered to address a wide range of industrial needs efficiently.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are meticulously crafted for municipal, tap, and well water applications. They deliver outstanding desalination treatment, extensively utilized in premium bottled water production, direct drinking water solutions, food processing, pharmaceutical manufacturing, and more.
Product advantages
1. Revel in exceptional large traffic and high stability, ensuring reliable operations that guarantee ultimate satisfaction.
2. Enjoy the benefits of low operating pressure and superior cost-effectiveness, optimizing your investment and enhancing value.




SAND.K is passionately committed to advancing water environmental technology, utilizing a global supply chain system to drive transformative innovation across the industry. We provide comprehensive, one-stop solutions for core components, expertly tailored for small to medium-sized equipment manufacturers. Our unwavering dedication extends across borders through e-commerce, serving global customers in emerging markets with unparalleled dedication.
Our independent R&D, coupled with robust manufacturing capabilities, solidifies our standing as industry leaders, setting benchmarks for quality and innovation. By leveraging extensive data analysis, we craft custom solutions for regions facing high salinity water challenges, setting new standards for excellence in water treatment solutions.
Our dynamic solutions span seawater desalination, waste leachate treatment, drinking water purification, and pioneering the reuse of treated wastewater, driving innovation forward. Moreover, our competitive cost advantage sets us apart in the industry, offering unmatched value and strategic benefits that make us the preferred choice.

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. |