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 outstanding performance in a variety of Commercial Use scenarios, setting benchmarks in efficiency and reliability.
Application: Masterfully crafted to excel in high TDS film membrane applications, our product delivers unparalleled performance and outstanding results.
Active Membrane Area: Boasting a remarkable 31.97 ft², this design maximizes efficiency and enhances output, ensuring peak performance at all times.
Average Permeated Flow: Achieving a stellar 800GPD, our membrane ensures consistent and reliable water processing capabilities, meeting the highest industry standards.
Stable Rejection Rate: Consistently achieving a high rejection rate of 96%-97%, our membrane guarantees superior water quality with every use, safeguarding against impurities.
Function: Efficiently removes COD, BOD, and NH-N, significantly enhancing overall water purity and ensuring cleaner, safer water.
Home RO membrane options available: Choose from 75GPD, 100GPD, 150GPD, and 200GPD variants, offering personalized solutions for every household need.
Commercial RO membrane ranges include: 300GPD, 400GPD, 600GPD, and 800GPD, perfectly tailored to meet diverse and demanding commercial applications.
Industrial membrane models offered: Expertly designed models 2521, 2540, 4021, 4040, and 8040, addressing a wide range of industrial needs with precision and reliability.
Commercial Reverse Osmosis Element Main Application Areas
Our meticulously crafted commercial reverse osmosis membrane components are ideal for municipal water, tap water, and well water applications. They deliver outstanding desalination treatment, making them indispensable in premium bottled water production, direct drinking water solutions, food processing, pharmaceutical manufacturing, and beyond.
Product advantages
1. Revel in exceptional large traffic and high stability, ensuring reliable operations and ultimate satisfaction, raising the bar for industry standards.
2. Enjoy the benefits of low operating pressure and superior cost-effectiveness, optimizing your investment and delivering exceptional value.




SAND.K is ardently committed to advancing water environmental technology, harnessing a global supply chain system to spearhead transformative innovations across the industry, delivering breakthrough solutions. We provide comprehensive, one-stop solutions for core components, expertly tailored for small to medium-sized equipment manufacturers. With a steadfast dedication, we extend our reach across borders through e-commerce, serving global customers in emerging markets with unparalleled dedication and precision.
Our independent R&D, coupled with robust manufacturing capabilities, solidifies our standing as industry leaders, consistently delivering cutting-edge solutions. By leveraging extensive data analysis, we craft bespoke solutions for regions facing high salinity water challenges, setting a new standard for excellence in water treatment solutions worldwide.
Our dynamic solutions span seawater desalination, waste leachate treatment, drinking water purification, and pioneering the reuse of treated wastewater, driving forward-thinking innovations across industries. Moreover, our competitive cost advantage sets us apart within the industry, offering unmatched value and strategic benefits that redefine the marketplace.

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. |