As a top 3 player in the whole house water filtration system sector, we have 19 years of dedicated expertise in ultrafiltration technology.
For us, quality is never an afterthought, it is our top priority.
After more than a year of R&D, testing and continuous optimization, ChengrongTimes Mineral-Retaining Under Sink Water Purifier has officially entered the market.
In recent days, we have obtained the required water sanitation approval certificate, SGS test reports and direct drinking water inspection reports.
These test reports enables ChengrongTimes to deliver a breakthrough mineral-retaining direct drinking water solution to families, offices and commercial venues—one that offers both exceptional clean and healthy mineral-retaining direct drinking water, with no equal in the industry.
This is not just a product launch.
It is a under sink water purifier we use every day ourselves.
Before recommending it to customers, I first installed ChengrongTimes mineral-retaining under sink water purifier at my home, in my office and at all drinking water stations in Chengrong Factory, so that my family, colleagues and staff can drink clean, healthy and well-tasted direct drinking water every day.
In my view, a premium under sink water purifier should first be trusted and used by the people closest to me.
ChengrongTimes Mineral-Retaining Water Purifier, Built on 19 Years of Ultrafiltration Manufacturing Experience
With 19 years of experience in the pipeline ultrafiltration water filter industry, Chengrong Factory has built a complete supply-chain advantage, which is unmatched by our peers.
We independently R&D ultrafiltration membranes as well as finished ultrafiltration water filters products, which allows us to control key technologies, materials and manufacturing quality from the source.
This full-chain capability is one of the reasons why we developed the ChengrongTimes Mineral-Retaining Under Sink Water Filters for household and office drinking water use.
Different water purification technologies are designed for different needs.
Reverse osmosis water purifiers are known for their strong ability to reduce total dissolved solids and a wide range of impurities. Thus, RO water purifiers are especially suitable for water sources with high salinity, high TDS or specific chemical contamination concerns.
However, for municipal tap water and qualified natural water sources, many users also want clean direct drinking water that retains natural minerals and provides a fresher, more natural taste. This is exactly the direction of the ChengrongTimes mineral-retaining under sink water purifier: removing sediment, bacteria, certain viruses, residual chlorine and other target contaminants while preserving naturally occurring minerals and trace elements in the water.
Instead of producing demineralized pure water, our goal is to provide clean, healthy and better-tasting mineral-retaining filtered water for daily drinking.
You would be hard-pressed to find another water purifier brand besides ChengrongTimes that truly delivers on this promise. This may seem counterintuitive, yet that is the reality.
Four Filtration Materials Integrated into One Large Cartridge
Many under sink water purifiers use a multi-cartridge structure.
ChengrongTimes adopts a more compact and efficient design by integrating four high-quality water filtration materials into one large composite cartridge.
This integrated structure helps balance three important factors at the same time:
- Space-saving compact design fits easily under any kitchen sink, with a slim profile that requires just 48cm of vertical clearance..
- With 2-3 times more filtration media than most competitors, you get long-lasting, reliable performance you can count on.
- Lightning-quick water flow that keeps up with your busy life. No more standing idle waiting for water to fill—perfect for bustling families and busy offices.
The result is an under sink water purifier that is easy to install, convenient to use and powerful enough for direct drinking water needs.
First Filtration Stage: Pleated Cotton Filter for Large Particles Removal
The raw water first passes through a pleated cotton filter.
This first filtration layer acts as the initial barrier, helping intercept visible impurities, sediment, rust, suspended particles and other larger contaminants in the water.
By removing these impurities at the beginning, it also helps protect the following filtration materials and improve the stability of the whole under sink water purifier system.
Second Stage: Activated Carbon Fiber for Taste and Odor Improvement
After the first filtration stage, the water flows through high-grade activated carbon fiber.
Activated carbon is widely used in drinking water treatment, because it can help improve taste and odor. Compared with ordinary granular activated carbon, activated carbon fiber has a fibrous structure that provides efficient contact with water and strong adsorption performance.
Although common granular activated carbon is less costly, ChengrongTimes insists on using higher-grade activated carbon fiber because taste matters in daily drinking water.
This stage helps adsorb residual chlorine, unpleasant odors and certain organic substances, making the filtered water cleaner, fresher and more pleasant to drink.
Different with most competitors push their activated carbon cartridge to their absolute limits to inflate claimed lifespans, ChengrongTimes does the opposite.
We use 200-tonne carbon fiber media but rate it for only 100 tonnes. This massive safety margin ensures consistent organic compound and chlorine removal (the core function of carbon adsorption) and prevents any drop-off in performance before the recommended replacement date.
Third Stage: PP Cotton Protection Layer
After taste optimization, the water passes through a PP cotton layer.
This layer supports and protects the activated carbon fiber, helps prevent fine carbon particles from entering the next stage, and provides additional protection for the final chlorine-removal ultrafiltration membrane.
A stable internal filtration structure is essential for a reliable under sink water purifier. Every layer in the ChengrongTimes cartridge is designed not only for filtration performance, but also for long-term structural stability.
Final Stage: ChengrongTimes Industry-exclusive Chlorine-Removing Ultrafiltration Membrane, Our Proprietary Technology
The final stage is ChengrongTimes’ independently developed chlorine-removing ultrafiltration membrane.
Conventional ultrafiltration membranes are mainly used to intercept microorganisms and fine particles according to 0.01μm pore size.
ChengrongTimes further developed a special 0.01μm ultrafiltration membrane with residual chlorine removal performance, allowing this final stage to combine high-precision filtration rating with additional chlorine reduction function.
With a filtration rating of 0.01 micron, this ultrafiltration membrane is designed to reduce 99.99% bacteria, viruses, residual chlorine, sediment and fine particulate contaminants, while allowing natural minerals and trace elements to remain in the water.
This is the core difference between the ChengrongTimes mineral-retaining water purifier and a conventional RO pure water purification route.
Why We Put Activated Carbon Before the Final Membrane
A common design in most water filtration systems is to use activated carbon as a final taste-polishing stage, to extend the service life of activated carbon filters.
Activated carbon can improve taste, however, because it is an adsorptive material, it also requires proper design and maintenance to reduce the risk of secondary contamination.
ChengrongTimes adopts a different filtration logic.
We first use activated carbon fiber to improve taste and adsorb residual chlorine, then use our special chlorine-removing ultrafiltration membrane as the final barrier. This sequence allows the water to gain the taste benefits of activated carbon while still passing through a high-precision membrane at the final stage.
In simple terms, the water is not only made better-tasting first, but also receives final membrane-level protection before it reaches the faucet.
A Practical Alternative to RO for Qualified Source Water
ChengrongTimes does not claim that one technology is suitable for every water source.
For areas with high TDS, brackish water, high salinity or specific chemical contamination concerns, a reverse osmosis water purifier may be a suitable choice.
For municipal tap water and qualified natural water sources, however, many families and offices prefer a water purifier that can provide clean direct drinking water while beneficial retaining natural minerals.
Compared with demineralized RO pure water, mineral-retaining filtered water often has a more natural and refreshing taste.
This is why ChengrongTimes developed this under sink water purifier: to offer a balanced solution between filtration performance, mineral retention, water flow and daily drinking experience.
Tested for Direct Drinking Water Performance
When we sent our mineral-retaining filtered water for inspection, the results confirmed that the filtered water met the relevant direct drinking water inspection requirements under the tested conditions.
For ChengrongTimes, this is an important breakthrough.
This under sink water purifier achieves high water flow, high filtration precision, residual chlorine reduction and mineral retention in one compact system. It is designed to provide clean, fresh and mineral-retaining direct drinking water for families, offices and commercial spaces.
A Under Sink Water Filter We Use Ourselves Every Day
Today, I drink water filtered by this ChengrongTimes under sink water purifier at home, in my office and throughout our company water stations.
I am not only the developer of this product. I am also one of its most loyal users.
As someone who has worked in the water purifier industry for many years, I understand the internal structure, raw materials, semi-finished components, production process and core technologies behind a filtration product. This is why I have strict standards for every product ChengrongTimes brings to the market.
A product is truly convincing only when it can first win the trust of ourselves, our families, our colleagues and our friends.
Sharing this mineral-retaining water purifier with the people around us is the most direct expression of our confidence in its quality.
Ultrafiltration water filter made in Chengrong Factory, Zero Worries for Global Customers
10 Years Rust-Free Guarantee
10 Years Leak-Free Assurance
10 Years Professional After-Sale Support
ChengrongTimes Whole House Water Filter, Never Compromise on Quality and Service
- Chlorine-removing ultrafiltration water filter: a propriety technology of Chengrong Factory, is the one and only worldwide, serving as the core filtration material of ChengrongTimes mineral-retaining under sink water filter. With a filtration rating of 0.01 micron, it removes 99.99% of impurities, bacteria, viruses and residual chlorine in water, while retaining natural minerals and trace elements.
- ChengrongTimes mineral-retaining filtered water =Clean and healthy, tasting well
- RO reverse osmosis filtered water = clean but unhealthy, tasting bland and lacks natural sweetness
- Ranking among the TOP3 in the inline ultrafiltration water filter industry, Chengrong Ultrafiltration Fatory are the one and only full-supply-chain ultrafiltration manufacturer in the sector, providing reliable ODM and OEM production services for 5 global leading brands.
- For the water filter systems from Chengrong Factory, our quality supasses insurance-grade reliability, our service exceeds even the customer’s own expectations.
