ChengrongEra Mineral-retaining Under Sink Water Filter has officially hit the market after over a year of research, development, testing and iterative optimization.

We have obtained the water approval certificate, SGS test reports and direct drinking water inspection reports in recent days.

I have installed this mineral-retaining under sink water filter at my home&office for drinking, and all water dispensing points in Chengrong Factory, enabling all Chengrong staff to drink clean and healthy direct drinking water. I think premium-quality under-sink water filters should first benefit my family and colleagues around me. To be honest, there are barely any other under-sink water filters worldwide that can eliminate bacteria, viruses and residual chlorine while preserving natural beneficial minerals to produce safe drinking water.

With 19 years of profound experience in the pipeline ultrafiltration water filter industry, Chengrong Factory is a one-stop full-supply-chain manufacturer that independently develops and produces ultrafiltration membranes and finished ultrafiltration water filters — an edge rarely seen in this field. Therefore, we can design the ChengrongEra Mineral-retaining under-sink water filter in the most scientific way for home use. And unlike pure water filtered by reverse osmosis water filter stripped of beneficial minerals, it produces clean healthy water with natural minerals preserved.

Different from the conventional multi-filter structure widely adopted in our industry, we integrate four high-quality filter materials into one integrated large filter cartridge. It perfectly balances compact size and sufficient filter media, ensuring high water flow rate along with outstanding filtration performance.

The raw water first passes through pleated cotton filt, which serves as the first barrier to intercept large particulate impurities in water.

Next comes activated carbon fiber. It boasts stronger adsorption capacity and longer service life than ordinary granular activated carbon, with a specific surface area 400 times higher. Despite the lower cost of common granular activated carbon, we insist on adopting high-grade activated carbon fiber at higher costs, as it could effectively adsorbs residual chlorine, peculiar odors, partial organic substances and heavy metals, greatly improving water taste, making the output mineral-retaining filtered water with better taste.

After taste optimization, the water keeps flowing through PP cotton filter, which supports and protects activated carbon fiber, as well as shields the subsequent chlorine-removing ultrafiltration membrane. Although activated carbon fiber can adsorb most residual chlorine, it cannot achieve thorough removal for running water. This is why we adopt Chengrong’s exclusive chlorine-removing ultrafiltration membrane as the final filtration stage.

Developed independently by our factory, this exclusive ultrafiltration membrane combines conventional ultrafiltration function with residual chlorine removal effect. With a filtration rating of 0.01 micron, it eliminates 99.99% of bacteria, viruses, residual chlorine, sediment and other particulate contaminants, while retaining natural minerals and trace elements essential to human bodies.

For municipal tap water and qualified natural water sources, water filtered by ChengrongEra mineral-retaining under sink water filter fully meets the standard of direct drinking water. Compared with pure water from reverse osmosis water filt, our filtered mineral-retaining water is healthier and tastier. Rich in natural minerals and trace elements, it avoids the bland taste of pure water. Moreover, these natural nutrients work synergistically inside human bodies for higher absorption rate, bringing nothing but health benefits.

Most mainstream kitchen under sink water filter in the industry adopt a reversed filtration sequence: raw water firstly goes through ultrafiltration membrane or RO membrane to remove impurities, then flows through activated carbon filters to improve taste. Chengrong Era adopts an optimized design: prioritize taste improvement via activated carbon fiber first, then eliminate bacteria, viruses and other contaminants with special ultrafiltration membranes, since activated carbon tends to breed bacteria while adsorbing residue chlorine, and our innovative filtration sequence effectively avoids secondary pollution caused by activated carbon materials.

When we sent our mineral-retaining filtered water for inspection at Shenzhen Academy of Metrology and Quality Inspection, even their professional inspectors spoke highly of its excellent filtration effect. Test results confirmed our filtered water complies with national direct drinking water standards, which is quite a remarkable breakthrough in the industry. ChengrongEra under sink water filter realizes high water flow, high filtration accuracy and efficient residual chlorine removal simultaneously, achieving ideal mineral water quality.

Now I use water filtered by this kitchen under sink water filter at home, in my office and all company water stations. I am the most loyal user of our own products. I believe a product can only be recognized as qualified once it wins approval from myself, my family, colleagues and friends. As an insider in this industry, I have full knowledge of its internal structure, raw materials, semi-finished parts, production techniques and core technologies. This product has fully met my strict standards in both R&D and manufacturing.

Sharing it with family, colleagues and friends fully demonstrates my full confidence in its reliable quality.

Quality products speak for themselves, and the best way to verify their merits is to put them into actual use.

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