
- 0.01 μm Chlorine-Removing Ultrafiltration Membrane, Drinking Water with Natural Minerals Retained
— Chengrong Proprietary Technology, the one and only worldwide. - Without RO Demineralization, Zero Wastewater
— 2–3× the Flow Rate of the competitors in the market. - 316L Stainless Steel Housing, 10-year rust&leak proof
— Superior Corrosion Resistance to 304 Stainless Steel. - Dual-Water-Outlet Design, NO Waste Water
— No Wastewater Drain connection, Minimizing the Risk of Bacterial Back-Contamination.
| Specification | Details |
|---|---|
| 4-in-1 Composite Filter Cartridge | 10 μm Pleated Filter → Activated Carbon Fiber → 5 μm PP Filter → 0.01 μm Chlorine-Removing UF Membrane |
| Filtration Precision | 0.01 μm |
| Cartridge Material Safety | SGS Tested According to NSF/ANSI 58 Requirements |
| Drinking Water Quality | Tested by SMQ to CJ/T 94-2005 Drinking Purified Water Quality Standard |
| Operating Temperature | 5–38°C |
| Working Pressure | 0.1~0.4 MPa |
| Water Source | Municipal Water / Tested Potable Well Water |
| Cartridge Service Life | Replace once a year |
| Cartridge Warranty | 1 Year |
| Housing Material | 316L Stainless Steel with ABS Base |
| Housing Thickness | Lid: 1.80 mm; Body: 1.45 mm |
| 10-Year Housing Warranty | Rust-Free and Leak-Free |
| Installation Type | Under-Sink / Countertop |
| Dimensions | 320*320*475 mm |
4-in-1 Composite Filter Cartridge for Great-Tasting Drinking Water making without RO Demineralization
2–3× More Filter Media
660 L/H High Flow Rate
Retains Natural Minerals
10 μm Pleated Filter → Activated Carbon Fiber → 5 μm PP Filter → 0.01 μm Chlorine-Removing UF Membrane

designed to reduce sediment, chlorine, odors, bacteria, viruses and other impurities for cleaner, better-tasting drinking water while retaining natural minerals.
- Stage 1: 10 μm Pleated Sediment Filter
Removes sediment, sand, rust, dirt, and other large particles from water, protecting the downstream activated carbon fiber filter and extending its service life. - Stage 2: Activated Carbon Fiber
Reduces residual chlorine and unpleasant tastes, adsorbs odor- and color-causing impurities, pesticide residues, and certain heavy metals, improving the taste and overall quality of water. - Stage 3: 5 μm PP Sediment Filter
Captures fine particles and carbon fines from the previous filtration stage, protecting the downstream ultrafiltration membrane for more reliable filtration. - Stage 4: 0.01 μm Chlorine-Removing UF Membrane Cartridege
1) Completely removes residual chlorine remaining after the activated carbon fiber stage;
2) Provides final-stage filtration down to 0.01 μm, removing fine sediment, rust, colloids, parasite eggs, bacteria, viruses, and other microscopic impurities that may remain after the first three filtration stages.

A Rare Filtration Cartridge Design to Avoid the Risk of Post-Carbon Secondary Contamination
Unlike conventional designs that place activated carbon at the final filtration stage, ChengrongTimes positions activated carbon fiber before the 0.01 μm chlorine-removing UF membrane.
The chlorine-removal UF membrane serves as the final filtration barrier, helping block carbon fines and bacteria that develop within the activated carbon fiber before the water reaches your tap.
Conventional Design:
UF/RO membrane → activated carbon → drinking water
High post-carbon secondary contamination
ChengrongTimes Design:
activated carbon filter → 0.01 μm chlorine-removing UF membrane → drinking water
Low or even No post-carbon secondary contamination
High-Flow Filtration That Retains Natural Minerals, One of the Few in the Industry
- ChengrongTimes under sink water filter retains 100% of naturally occurring minerals in drinking water, unlike RO systems that remove many dissolved minerals during filtration.
- Up to 660L/h high-flow filtration — no waiting for fresh drinking water, few others in the industry can match.

Under Sink Water Filter with Dual-Outlet Design, A Rare Design in the Industry
- Flexible Water Use
One outlet with 4-stage filtration for drinking and cooking;
the other with 3-stage filtration for washing food and dishes. - Zero Wastewater
Unlike RO filter systems, every drop of water is put to use. - No Drain Connection, Lower Risk of Secondary Contamination
With no connection to drain pipes, ChengrongTimes under sink water filter helps reduce the risk of bacteria entering the system and causing secondary contamination.

4-stage filtration for drinking and cooking, 3-stage filtration for washing food and dishes, with zero wastewater and no drain connection.

Up to 1-Year Filter Cartridge Life — Replacement Based on Actual Water Usage, Not a Preset Countdown
Unlike conventional preset countdown reminders, the ChengrongTimes under sink water filter monitors actual total water usage and real-time flow rate through built-in flow meter, providing a smarter, more accurate filter replacement reminder.
- Lower daily water usage → longer filter life
reduce unnecessary filter replacement and waste. - Higher daily water usage → earlier replacement
prevent continued use after the filter has reached its capacity.
Once total water usage reaches 100,000 liters, the activated carbon fiber reaches saturation. The filter indicator turns from blue to red, signaling that the filter cartridge should be replaced.
- Real-Time Flow Rate → UF membrane clogging
Indicates the clogging condition of the chlorine-removing UF membrane. - Total Water Usage → Activated carbon fiber saturation
Monitors the adsorption saturation level of the activated carbon fiber.

Beyond Standard 304 — Built with Premium 316L Stainless Steel
316L stainless steel housing has superior corrosion resistance and durability, making it better suited for long-term water contact.
- 1.45 mm 316L Stainless Steel Housing Body
Thicker than the ≤1.0 mm 304 stainless steel commonly found in the industry. - 1.80 mm 316L Stainless Steel Housing Lid
Thicker than the ≤1.0 mm 304 stainless steel commonly found in the industry. - 10-Year Warranty Against Rust & Leakage
Beyond what our peers dare to offer.

What You Can’t See Matters Just as Much
- 100% Polished Inside & Out
- 100% High-Temperature Ultrasonic Cleaning
Extra Steps Others Skip due to high cost, Standards We Refuse to Compromise, to help ensure a clean, hygienic water-contact surface.
Why Do most Manufacturers Skip These Steps?
1) No water-contact surface polishing
Skipping internal polishing reduces processing steps and production costs, while the difference is difficult for customers to notice.
2) No High-Temperature Ultrasonic Cleaning
High-temperature ultrasonic cleaning adds extra wastewater treatment and environmental compliance costs that some manufacturers choose to avoid.

