Model |
Adapted Pressure(psi/Mpa/bar) |
Salt Rejection(%) |
Flow Rate(GPD) |
Effective Membrane(ft²/m²) |
Size(inch) |
BW-RU4021 |
150/1.03/10.3 |
99.2 |
1000 |
36/3.3 |
4.0*21 |
BW-RU4040 |
2800 |
90/8.4 |
4.0*40 |
BW-RU8040 |
11300 |
400/37.2 |
8.0*40 |
BW-RL4021 |
225/1.55/15.5 |
99.6 |
900 |
36/3.3 |
4.0*21 |
BW-RL4040 |
2500 |
90/8.4 |
4.0*40 |
BW-RL8040 |
11000 |
400/37.2 |
8.0*40 |
BW-RX4040 |
100/0.69/6.9 |
99.2 |
2600 |
90/8.4 |
4.0*40 |
BW-RX8040 |
12000 |
400/37.2 |
8.0*40 |
RU8040-LDP34 |
150/1.03/10.3 |
99.6 |
10500 |
400/37.2 |
8.0*40 |
RL8040-OP10 |
225/1.55/15.5 |
99.7 |
11000 |
400/37.2 |
8.0*40 |
FR4040 |
99.5 |
2200 |
90/8.4 |
4.0*40 |
Versatile Applications
Applicable Industries: Expertly engineered for peak performance in Commercial Use, seamlessly integrating with various systems to ensure optimal efficiency.
Application: Masterfully crafted for high TDS film membrane applications, delivering unmatched performance and reliability across diverse environments.
Active Membrane Area: With an impressive 31.97 ft², this design is engineered to maximize efficiency, enhance output, and elevate your water treatment solutions.
Average Permeated Flow: Featuring a stellar rate of 800GPD, it ensures consistent and reliable water processing capabilities, meeting the needs of various applications with ease.
Stable Rejection Rate: Achieving a consistently high 96%-97%, it guarantees superior water quality with every use, providing peace of mind and reliability.
Function: Efficiently removes COD, BOD, and NH-N, significantly enhancing overall water purity to meet exacting standards of quality and safety.
Home RO membrane options available: Choose your perfect fit among 75GPD, 100GPD, 150GPD, and 200GPD variants, personalized to your needs.
Commercial RO membrane ranges include: From 300GPD to 800GPD, these options are designed to meet diverse commercial demands with precision and reliability.
Industrial membrane models offered: Explore our range, including 2521, 2540, 4021, 4040, and 8040, tailored to address a wide range of industrial needs with excellence.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are meticulously crafted for municipal water, tap water, and well water applications. They deliver outstanding desalination treatment, widely utilized 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.
2. Enjoy the benefits of low operating pressure and superior cost-effectiveness, optimizing your investment with outstanding efficiency.



SAND.K is passionately committed to advancing water environmental technology, harnessing a global supply chain system to drive transformative innovation across the industry. We offer 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 exceptional service and commitment.
Our strong independent R&D, coupled with robust manufacturing capabilities, solidifies our standing as industry leaders, ensuring superior product 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 encompass seawater desalination, waste leachate treatment, drinking water purification, and pioneering the reuse of treated wastewater, driving forward the frontier of innovation. Moreover, our competitive cost advantage distinctly sets us apart in the industry, offering unmatched value and strategic benefits to our customers.

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. |