Before the establishment of the ChengrongEra brand, Chengrong Ultrafiltration Factory was mainly focused on B2B business.
Therefore, several years ago, we began regularly sending our ultrafiltration filter cartridges to SGS—the world’s leading third-party testing and certification body—to verify whether our products meet the American NSF standards. I am proud to say that all our UF filter cartridges tested by SGS have fully complied with NSF/ANSI 58-2023.
Chengrong Ultrafiltration Factory produces and ships more than 500,000 units annually, with products sold across 13 countries worldwide. These authoritative SGS test results reassure customers about the safety and quality of our UF membrane materials. More importantly, they prove that our annual R&D investment of over 3 million RMB is a worthwhile long-term investment.
In the pipeline UF water filter industry, few manufacturers focus on R&D and quality as rigorously as we do. That is why our peers even claim that Chengrong “spends too much” on management and quality control, which they believe harms short-term efficiency.
Many peers follow the philosophy of “No bees, no honey”—refusing to invest without immediate returns. In my view, this mindset hinders sustainable long-term development. At Chengrong, we proactively invest in quality improvement. Even if returns are not immediate, such efforts strengthen our capabilities and lay a solid foundation for the factory’s future.
Some people have commented that ChengrongEra UF water filters only meet NSF standards through testing, without official NSF certification, implying our tests are just a gimmick.
I strongly disagree.
Official NSF certification costs hundreds of thousands of RMB. I believe it is unreasonable to bear such an enormous cost simply to prove product safety—especially when SGS testing according to NSF standards already achieves the same result. Ultimately, these huge expenses would only be passed on to end consumers. We do not believe this is responsible or worthwhile.
Although ChengrongEra ultrafiltration water filters do not carry official NSF certification, we randomly sample and test our products through SGS, strictly following the requirements of NSF/ANSI 58-2023. This approach is more rational and responsible—both to our brand and to our customers.
Authoritative test results of this caliber are rare in the industry—and that is what truly supports our confidence in ChengrongEra.
Chengrong UF water filter&Purifier, Zero Worries for Customers
Rust-free for 10 years
Leak-free for 10 years
After-sale support for 10 years
ChengrongEra (诚荣时代®) water filters and Purifiers, never compromise on quality
Based in Shenzhen, Chengrong Factory is a leading manufacturer with 19 years of experience in ultrafiltration water filters, ranking among the top 3 in the industry. We are a full-supply-chain factory that is hard to find elsewhere in the world, and an ODM/OEM partner for multiple top global brands. Chengrong lets our customers sleep with peace of mind.
ChengrongEra water filters and purifiers: quality is more insuring than insurance companies, and service is more customer-like than the customer.
