From Ultrafiltration Membranes to Complete Whole House Water Filtration Systems: How ChengrongTimes’ Fully Integrated In-House Manufacturing Sets It Apart

Chengrong Factory was established on May 6, 2008.

It’s one of the last few factories that cover the full supply chain for the R&D and manufacturing of ultrafiltration membranes and the complete ultrafiltration water filter systems.

By 2026, Chengrong Ultrafiltration Factory has long become the benchmark for peers worldwide in the ultrafiltration industry.  

In the Chengrong Factory, we always put R&D first, update products nonstop, and have customers’ backs. Out of nearly 4,000 peers in China, fewer than 10 have got the “National High-Tech Enterprise” title, and Chengrong factory is one of them. 

Since 2008, we have remained committed to a focused product strategy, continuously refining our expertise in the R&D and manufacturing of ultrafiltration membranes and complete ultrafiltration water filtration systems.

Four Distinctive Ultrafiltration Water Filter Product Lines

  • 1. Mineral-like Under Sink Water Filter for Direct Drinking

    Unlike RO water filters, which remove nearly all substances from water—including both harmful contaminants and beneficial minerals.

    ChengrongTimes mineral-like under sink water filter removes 99% of bacteria, viruses, pathogens, and particulate impurities, as well as residual chlorine, while preserving naturally occurring minerals and trace elements.

    It delivers an ideal balance between clean, healthy, and great-tasting to the drinking water.
ChengrongTimes mineral-retaining under sink water filter with a high filtered-water flow rate.
ChengrongTimes mineral-retaining under sink water filter with a high filtered-water flow rate.
ChengrongTimes mineral-retaining under-sink water filter installed beneath a customer’s kitchen sink.
A real customer installation of the ChengrongTimes mineral-retaining under sink water filter.
It removes harmful contaminants while retaining naturally occurring minerals and trace elements—an uncommon filtration capability in the market.
  • 2. Whole House Water Filter

    ChengrongTimes 0.1-micron whole house water filtration systems are designed to install on the main water inlet pipeline, used to intercept any sediment, rust, and other particulate impurities in the supply raw water.

    ChengrongTimes 0.1-micron whole house water filters can treat both municipal tap water and well water, turning turbid water crystal clear and providing cleaner water for showering, laundry, and other household uses.

    They also improve the feed-water quality for water-using appliances and point-of-use kitchen water filters.

    Unlike the mainstream whole house water filtration systems on the market, which rely on activated carbon adsorption and incomplete filtration by 5-micron PP sediment filter cartridges, ChengrongTimes whole house water filters use 0.1-micron membrane pores to physically intercept fine particulate impurities in water much more thoroughly.
Installation diagram of a ChengrongTimes whole house water filter connected to the main water inlet pipe, with a bypass line, pressure-reducing valve, and backwash outlet.
With a filtration precision of 0.1 micron, the system physically intercepts fine particulate impurities in turbid well water—including sediment, rust, colloids, and insect eggs—turning cloudy water crystal clear.
ChengrongTimes smart rotary-cleaning ultrafiltration hole house water filtration system
ChengrongTimes smart rotary-cleaning whole house water filter system
Chengrong’s proprietary automated rotary-cleaning technology addresses the membrane fouling and clogging problems commonly found in conventional PVDF ultrafiltration systems, significantly reducing the need for manual maintenance.
  • 3. High-Capacity Mineral-Retaining Drinking Water Filtration System for Commercial Use

    This system combines activated carbon with Chengrong’s proprietary 0.01-micron residual-chlorine-removal ultrafiltration membrane cartridge to provide clean, healthy, mineral-retaining drinking water for a wide range of commercial and institutional applications, including schools, offices, shopping malls, hotels, and other commercial facilities.

    Unlike filtration systems that combine reverse osmosis with activated carbon to produce pure water, ChengrongTimes produces mineral-retaining water with qualities similar to natural mineral water.

    While removing 99% of particulate impurities, bacteria, viruses, and residual chlorine, the system preserves the naturally occurring minerals and trace elements in the water.
High-Capacity Mineral-Retaining Drinking Water Filtration System for Commercial Use
High-Capacity Mineral-Retaining Drinking Water Filtration System for Commercial Use
  • 4. Complete Set of Water Filtration Equipment for Water Treatment Plants

    From design and manufacturing to complete system assembly, every step is carried out in-house at the Chengrong factory, with no outsourcing. This gives us full control over production and helps ensure reliable lead times, so customers can place their orders with confidence.

    Even in the details customers cannot see, Chengrong never cuts corners, never misleads, and never shifts responsibility. This commitment can be written directly into the contract.

    All externally sourced components—including displays, PLC control cabinets, and electrical components—are supplied by leading domestic and international brands and are covered by a two-year warranty.
Complete Set of Water Filtration Equipment for Water Treatment Plants
Complete Set of Water Filtration Equipment for Water Treatment Plants
Engineering water treatment equipment being manufactured in the Chengrong factory workshop.
Engineering water treatment equipment being manufactured in the Chengrong factory workshop.
From design and manufacturing to complete system assembly, every step is carried out in-house at the Chengrong factory, with no outsourcing.

Chengrong ultrafiltration factory is used to conducting 3 to 4 technical upgrades annually, ensuring Chenrong ultrafiltration membrane & filtration technology far ahead of our peers in the quality

The reason Chengrong has grown to become one of the top 3 ultrafiltration water filter factories today is that, over the past nearly 20 years, Mr. Zhuang Beikan, the founder, has run the factory with the core value of “Integrity as Pride”. His goal is to ensure Chengrong’s customers sleep soundly, helping them increase market profits by 10%. He has truly turned the concept of “zero customer worries” into reality.

From its early days, when Chengrong Factory focused on manufacturing hardware parts, processing stainless steel casings for ultrafiltration water filters, which is always used for whole house wtaer filtration system to filter rural well water, then providing ODM/OEM services for complete ultrafiltration water filters, all staff have adhered to the ISO 9001 international quality certification system, with an annual investment of over 360K RMB into quality checks. This is why ChengrongEra UF filter as whole house water filtration system will be no leakage and no rust for 10 years.

Later, the factory established our own ultrafiltration membrane facility, and further expanded into the engineering sector, covering commercial ultrafiltration water filtration equipment for urban water treatment plants. 

Starting as a small workshop with only 10 employees, it has grown into a full-supply-chain factory with 280 staff, a feat rarely matched by any other factory in the industry.

In 2025, Chengrong Ultrafiltration Factory launched its own brand: ChengrongTimes (诚荣时代®), targeting the top 2% high-end market.

In manufacturing quality, product functionality, and structural design, ChengrongTimes has already become a benchmark that global whole house water filtration system industry peers strive to match.


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 Filters and Under Sink Water Filters,
Never Compromise on Quality and Service

Chengrong Ultrafiltration Factory Overviw
Chengrong Ultrafiltration Factory Overviw