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: Impeccably designed for supreme Commercial Use, this product excels in delivering unmatched quality and reliability.
Application: Impeccably designed for high TDS film membrane applications, it achieves exceptional performance with ease.
Active Membrane Area: Featuring a remarkable 31.97 ft², this design ensures optimal efficiency and productivity.
Average Permeated Flow: With a robust 800GPD, it guarantees dependable water processing for all your needs.
Stable Rejection Rate: Maintaining a superior high rate of 96%-97%, it assures premium water quality every time.
Function: Adeptly purifying water by removing COD, BOD, and NH-N, it significantly elevates water purity.
Home RO membrane options available: Choose from 75GPD, 100GPD, 150GPD, and 200GPD variants for bespoke solutions to fit your needs.
Commercial RO membrane ranges include: 300GPD, 400GPD, 600GPD, and 800GPD, tailored to satisfy a variety of commercial needs.
Industrial membrane models offered: 2521, 2540, 4021, 4040, and 8040, accommodating extensive industrial requirements with precision.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are intricately crafted for municipal, tap, and well water applications. Offering superior desalination treatment, they're essential in premium bottled water, direct drinking water systems, food processing, pharmaceutical manufacturing, and more.
Product Advantages
1. Revel in outstanding large flow capacity and high stability, ensuring dependable operations and customer delight.
2. Benefit from low operational pressure and exceptional cost-effectiveness, ensuring your investment is optimized.




SAND.K is passionately dedicated to advancing water environmental technology, leveraging a global supply chain to lead transformative innovation across the sector. We deliver comprehensive, one-stop solutions for core components, expertly crafted for small to medium-sized equipment manufacturers. Our unwavering commitment extends globally through e-commerce, serving customers in emerging markets with unmatched dedication.
Our independent R&D, combined with formidable manufacturing abilities, reaffirms our position as industry frontrunners. By utilizing extensive data analytics, we develop custom solutions for areas with high salinity water issues, setting new standards in water treatment excellence.
Our innovative solutions cover seawater desalination, waste leachate treatment, drinking water purification, and pioneering wastewater reuse, propelling innovation forward. Moreover, our competitive cost advantage distinguishes us in the industry, providing unparalleled value and strategic benefits.

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. |