Why do we design ChengrongEra Mineral-water-like Purifier this way?
Water flows through sequentially: pleated cotton → activated carbon fiber → PP cotton → residual chlorine-removing ultrafiltration membrane [Chengrong's proprietary technology]
Their primary role is to protect the carbon fiber and extend its service life. While these materials serve as core filtration components in the peers, but only perform auxiliary functions in ChengrongEra kitchen water purifier. Their ceiling is our floor.
Pleated cotton: with a filtration precision of 5 microns, it intercepts all particulate impurities larger than 5 microns in water
PP cotton: fixes and supports the carbon fiber
1) Its main function is to adsorb odors and residual chlorine in water, enhancing water taste and making it more palatable.
2) Boasting a specific surface area 400 times that of granular activated carbon, its service life and adsorption capacity are unmatched by granular activated carbon or sintered carbon, rarely matched by any other in the industry.
With a filtration precision of 0.01 microns, it not only intercepts 99.99% of particulate impurities, bacteria, and viruses in water, but also removes residual chlorine unadsorbed by the carbon fiber. Further improves taste, ensuring the purified water meets mineral water-like standards.
Competitors can't match us：
1) When water flows continuously through the carbon fiber, insufficient contact time leaves some residual chlorine unadsorbed.
However, Chengrong's proprietary residual chlorine-removing ultrafiltration membrane, effectively eliminates this remaining chlorine, truly restoring water's essence and enabling the purified water to meet mineral water-like standards, a feature rarely seen in the industry.
2) Carbon fiber (or activated carbon) in water purifiers is prone to breeding bacteria. Unlike competitors, who place activated carbon filters after ultrafiltration/RO membranes, ChengrongEra kitchen water purifiers position the carbon fiber before the ultrafiltration membrane.
This design not only enhances water taste but also avoids the risk of excessive bacteria in the purified water, another industry-leading advantage rarely matched by others.
4-stage filtration filter cartridge
folded cotton – carbon fiber – PP cotton – residual chlorine-removing ultrafiltration membrane（Proprietary Technologies of Chengrong Ultrafiltration Factory）
1) ChengrongEra Kitchen mineral-water-like purifier, not only removes 99.99% of particulate impurities, bacteria, viruses, parasites, and residual chlorine from water, but also retains the minerals and trace elements essential to the human body.
2) Mineral-water-like standard, clean and healthy, suitable for long-time drink
2、RO reverse osmosis water：clean, but UNHEALTHY
Pure water, clean but overly so, which makes it unhealthy, as it contains no minerals or trace elements essential to the human body
3、90% of the Ultra-filtration kitchen purifier on the market: NOT SAFE for direct drinking
1) It retains minerals and trace elements in water, however, their ultrafiltration membrane used is called the "fake ultrafiltration" from our industry's perspective.
2) Its filtration precision does not reach 0.01 microns, making it unable to filter out bacteria, viruses, and residual chlorine from water.
3) Cleaner than tap water, but fails to meet the direct drinking mineral-water-like standard.
Intelligent reminder for filter replacement
Monitoring filter life based on water flow rate, more scientific than peers' countdown timers
Large water flow, NO waste water
with a filter filtration area at least twice that of competitors, but keep the size compact, peers cannot make it
Meet the NSF 58 standard
and is certified by SGS
316L Stainless Steel Housing
Compact Size
10 years rust-free; 10 years leak-proof
Among the TOP 3 mineral-like water purifier factories, only ChengrongEra is leading the way alone.
In the field of stainless steel pipe ultrafiltration water purifers, it may be hard to find a more professional Chinese factory than Shenzhen Chengrong Ultrafiltration Factory.
From R&D and production of ultrafiltration membranes, processing of hardware and stainless steel housings, to complete unit assembly and end-to-end quality control, All are fully handled in-house by Shenzhen Chengrong Ultrafiltration Factory. No core components are outsourced.
Such a Full-Supply Chain integrated factory is truly one of a kind globally in the pipe ultrafiltration sector.
ChengrongEra Water Purifier never compromises on quality. Being a full supply chain integrated factory is our unshakable confidence!
R&D and manufactured chlorine-removable ultrafiltration membranes, few rivals worldwide. Just check online, are there any competitors with authoritative certifications?
The ultrafiltration membranes from Chengrong Ultrafiltration Factory adopt proprietary technology, twice spiral stirring of A&B glue combined with constant-temperature bonding, NO other factory can replicate.
By 2025, Chengrong Factory has secured over 100 patents, including 3 invention patents, 8 software copyrights, 64 utility model patents, and 50 design patents. This is a rarity in the industry.
Investing over 3 million RMB annually in R&D, we continuously upgrade process technology, product structure & appearance, and mold development. How many competitors can match this commitment? Few, but chengrong ultra-filtration factory is one of them.
5 international first-line water purifier brands have chosen Chengrong Factory for ODM/ODM. Cuz Chengrong factory, as a top 3 factory in the industry, puts clients at ease and helps them earn 10% more in the market.
18 years in stainless steel pipe ultrafiltration water purification sector, Chengrong Ultra-filtration Factory is a one-of-a-kind full supply chain factory. ChengrongEra is our own brand, leading the industry alone: top 1% in quality, functionality and design, unmatched by peers.
10 Years Rust-Free
10 Years Leak-Proof
10 Years After-Sales Guaranteed
These are not only the brand commitments of ChengrongEra, but also a guarantee of the reputation and credibility of Chengrong Ultrafiltration Factory.
The ultrafiltration membranes from Chengrong Factory utilize proprietary technology featuring secondary spiral stirring of A&B adhesives and constant-temperature bonding.
Its our core competitiveness that no other manufacturer in the ultrafiltration industry can match.
Spinning is the proprietary process and control system of Chengrong Factory, ensuring the membrane filaments with dense, uniform micropores, and when it comes to the toughness or strength, rarely matched by competitors.
Our PVC spinnerets feature one hole per head, ensuring consistent outer diameter and uniform wall thickness, a stark contrast to the multiple holes per head used by competitor factories.
The raw materials for Chengrong ultrafiltration membranes are high-end configurations, rarely matched by any other Chinese manufacturer.
And our formulas have undergone countless optimizations and iterations, still keeping investment in R&D to this day, competitor factories cannot do it.
Finished membranes are soaked in purified water and disinfected with specially formulated alcohol, resulting in no peculiar smell, unlike competitors' post-treatment processes that leave chemical residues.
All supporting externally purchased components, such as raw materials, semi-finished products, supporting equipment, electrical components, and hardware assemblies, are by default sourced from first-line Chinese or international brands, we believe excellent products come from excellent suppliers.
Stainless steel housing and hardware accessories are by default made of food-grade 304 stainless steel; upgraded models for ChengrongEra use 316L stainless steel.
The housing thickness can withstand dynamic pressure testing of over 400K+ times, exceeding national standards by 300%, ensuring that Chengrong Era ultrafiltration water purifiers remain 10 years rust-free, 10 years leak-proof.
100% high-temperature cleaning is conducted to guarantee hygiene and safety, a step skipped by competitors due to the high costs involved.
For after-sales service, reply within 20 minutes, solution provided within 2 hours, and problem solved within 2 days.
On invisible details, Chengrong factory promise that we will never engage in petty tricks, never cut corners, and never shuffle responsibilities, all of which can be included in contract terms, peers dare to think and are unable to make it.
Steven, is the first customer that contacted us via our website to purchase the mineral-water-like kitchen water purifier.
Before us, Steven had purchased a $900+ RO water filter from the Amazon, and for peace of mind, he also paired it with the buyer’s water monitor. But despite careful installation, the water purification system never stopped leaking around the fitting and tubing. What’s the worse, after he submitted the videos, photos and detailed descriptions to the buyer again and again, nothing came back.
The hopeless Steven gave up asking for after-sale support, and searched on the google, trying to find a water purifier factory for reliable water filtration system, then he saw our website https://cr-superfilter.cn/. There happened to be an article about the water leakage, which explain why ChengrongEra water purifiers never leak. After reading this article, Steven just emailed us to confirm if ChengrongEra water purifier can be really leak-free for 10 years?
I replied YES, of course!
First, the housing of our water purifier is made of 316L stainless steel, better than 304 stainless steel.
Compared with plastic shells, 316L stainless steel has high mechanical strength. It can withstand long-term contact with water and water pressure without deformation or aging. Moreover, stainless steel adopts welding and threaded fastening connections, with a flat and firm sealing surface that will not loosen due to vibration or water pressure fluctuations. It can resist instantaneous impacts such as water hammer and sudden water pressure surges, and will not be damaged like plastic shells when exceeding the bearing capacity.
Second, the screws, nuts, and sealing rings of ChengrongEra water purifiers come standard with top international brands, ensuring no leakage.
Third, The integrated punching and flanging die and welding automation technology developed by Chengrong Factory are industry-first innovations that have been tacitly recognized as industry standards. The double-sided forming welding technique ensures that the stainless steel pipes of ChengrongEra water filtration devices are leak-free, non-discolored, and highly pressure-resistant, it is hard to find another competitors can achieve this?
Steve was driven to frustration by his water purifier’s leakage issue. He found what I said very reasonable, confirmed we are a genuine manufacturer with reliable after-sales service, and decided to order a kitchen water purifier from us, even with the high shipping cost. Overall, our water purifier is still more affordable than those sold on Amazon.
After installing it, Steve sent me a message saying he was very satisfied, it never leaks. The filtered water not only has no unusual odor but also tastes excellent, really like the bottled mineral water.
A month later, Steve placed another order with me for three more ChengrongEra kitchen water purifiers, one for his parents, and the other two on behalf of his friends.
Katerian bought ChengrongEra mineral-water-like water purifier, to eliminate bottled mineral water from the supermarket, to save money and also drink healthy.
She is a customer who really knows water inside out.
Before ChengrongEra water purifier, she had bought a RO water purifier for money saving and direct drinking. But just used for 3 months, she noticed a change in the flavor in her water, then she start to learn more knowleoge about the RO water purifer and the water.
The change of the water flavor is because the Bacteria in water exceed the standard limit.
Due to the ultra-high filtration precision of the RO (Reverse Osmosis) membrane, it not only intercepts suspended particles, bacteria, and viruses in water, but also removes beneficial minerals and trace elements. As a result, the produced water contains almost no minerals or trace elements, leading to a significantly reduced Total Dissolved Solids (TDS) value. However, such water has an extremely bland taste that is not pleasant to drink. To improve the taste, an activated carbon filter is usually installed after the RO membrane to enhance the water's flavor profile. Furthermore, activated carbon is inherently prone to bacterial growth, which in turn leads to excessive bacteria in the purified water, causing the water to develop an unpleasant flavor.
Katerian wanna have better healthier lifestly, but the RO water purifier would remove the beneficial minerals and trace elements, and with the risk of excessive bacteria. Thus, she wanna find a water purifier that can intercepts suspended particles, bacteria, viruses, and residual chlorine, but remain the minerals in water.
Then ChengrongEra water purifer comes to her eyes.
The main reason that Katerian decided to purchase ChengrongEra mineral-water-like water purifer is the word "mineral-water-like", and the Chengrong factory, she thought purchase from the factory could get more technical support.
After received the water purifier, everything is wonderful, the water taste very good, just like the mineral water in the supermarket.
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