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, redefining industry standards with unparalleled efficiency and reliability.
Application: Masterfully crafted for high TDS film membrane applications, our state-of-the-art SW2521 RO Membrane ensures unmatched performance and precision.
Active Membrane Area: With an extraordinary 31.97 ft², this membrane is specifically designed to maximize efficiency and significantly enhance overall output, setting new benchmarks in its class.
Average Permeated Flow: Delivers a stellar 800GPD, ensuring consistent, reliable, and high-quality water processing capabilities for all your needs.
Stable Rejection Rate: With a consistently high rejection rate of 96%-97%, our membranes guarantee superior water quality, ensuring peace of mind with every use.
Function: Efficiently removes COD, BOD, and NH-N, substantially boosting overall water purity and making it a cornerstone of any advanced water treatment system.
Home RO membrane options available: Offering a range of choices from 75GPD to 200GPD variants, enabling personalized solutions tailored to your unique needs.
Commercial RO membrane ranges include: From 300GPD to 800GPD, these options are designed to meet and exceed diverse commercial demands with precision and dependability.
Industrial membrane models offered: Covering models 2521 through 8040, our range addresses a wide spectrum of industrial needs, ensuring versatility and adaptability.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are meticulously crafted for applications in municipal water, tap water, and well water. They excel in desalination treatment, proving indispensable in premium bottled water production, direct drinking water solutions, food processing, pharmaceutical manufacturing, and beyond.
Product advantages
1. Revel in the exceptional capability of our membranes, offering large traffic and high stability for reliable operations and ultimate user satisfaction.
2. Enjoy the benefits of low operating pressure combined with superior cost-effectiveness, optimizing your investment and delivering outstanding returns.




SAND.K is passionately committed to advancing water environmental technology. By harnessing a global supply chain system, we lead transformative innovation across the industry, charting a new course for the future. We provide comprehensive, one-stop solutions for core components, expertly tailored for small to medium-sized equipment manufacturers. Our steadfast dedication extends beyond borders through e-commerce, serving global customers in emerging markets with unmatched dedication.
Our independent R&D and robust manufacturing capabilities solidify our standing as industry leaders, pushing boundaries and setting new standards. By leveraging extensive data analysis, we craft custom solutions for regions facing high salinity water challenges, setting the standard 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, propelling innovation forward. Moreover, our competitive cost advantage sets us apart, offering unmatched value and strategic benefits, making us a leader in the industry.

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. |