Versatile Applications
Applicable Industries: Perfectly tailored for Commercial Use.
Application: Expertly engineered for high TDS film membrane applications, the SW4021 ensures unparalleled performance and reliability.
Active Membrane Area: With an outstanding 31.97 ft², this design maximizes efficiency and optimizes output, setting new industry standards.
Average Permeated Flow: Delivering an impressive 800GPD, this system guarantees consistent and robust water processing capabilities.
Stable Rejection Rate: Offering a remarkably high rejection rate of 96%-97%, ensuring the delivery of superior, high-quality water.
Function: Efficiently eliminates COD, BOD, and NH-N, significantly enhancing the purity and safety of your water supply.
Home RO membrane options available: Discover our range of 75GPD, 100GPD, 150GPD, and 200GPD variants for flexible and customized home solutions.
Commercial RO membrane ranges include: Catering to diverse demands, we offer 300GPD, 400GPD, 600GPD, and 800GPD solutions for varying commercial needs.
Industrial membrane models offered: Our selection, including 2521, 2540, 4021, 4040, and 8040 models, meets a variety of industrial requirements.
Commercial Reverse Osmosis Element Main Application Areas
Our expertly crafted commercial reverse osmosis membrane components excel in municipal water, tap water, and well water use. They are renowned for exceptional desalination treatment, making them ideal for premium bottled water, direct drinking water, food processing, pharmaceutical production, and more.
Product advantages
1. Experience unrivaled large traffic and unwavering stability for dependable operations.
2. Enjoy the advantages of low operational pressure coupled with superior cost-effectiveness, maximizing your investment's value.






SAND.K is devoted to pioneering advancements in water environmental technology, harnessing a robust global supply chain to lead transformative innovation across the industry spectrum. We deliver comprehensive, all-encompassing solutions for core components, specifically designed for small to medium-sized equipment manufacturers. Our unwavering dedication extends through cross-border e-commerce, catering to global customers in emerging markets.
Our independent R&D, paired with formidable manufacturing capabilities, firmly positions us as frontrunners in the industry. By applying extensive data analysis, we tailor bespoke solutions for regions facing high salinity water challenges, cultivating excellence in water treatment solutions.
Our dynamic solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and trailblazing the reuse of treated wastewater. Furthermore, our competitive cost advantage sets us apart in the industry, offering unmatched 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. |