Under Sink Water Filter with Natural Minerals Retained

SpecificationDetails
4-in-1 Composite Filter Cartridge10 μm Pleated Filter → Activated Carbon Fiber → 5 μm PP Filter → 0.01 μm Chlorine-Removing UF Membrane
Filtration Precision0.01 μm
Cartridge Material SafetySGS Tested According to NSF/ANSI 58 Requirements
Drinking Water QualityTested by SMQ to CJ/T 94-2005 Drinking Purified Water Quality Standard
Operating Temperature5–38°C
Working Pressure0.1~0.4 MPa
Water SourceMunicipal Water / Tested Potable Well Water
Cartridge Service LifeReplace once a year
Cartridge Warranty1 Year
Housing Material316L Stainless Steel with ABS Base
Housing ThicknessLid: 1.80 mm; Body: 1.45 mm
10-Year Housing WarrantyRust-Free and Leak-Free
Installation TypeUnder-Sink / Countertop
Dimensions320*320*475 mm

2–3× More Filter Media
660 L/H High Flow Rate
Retains Natural Minerals

10 μm Pleated FilterActivated Carbon Fiber5 μm PP Filter0.01 μm Chlorine-Removing UF Membrane

4-stage under-sink water filter with a 4-in-1 composite cartridge featuring a 10 μm pleated sediment filter, activated carbon fiber, 5 μm PP filter, and 0.01 μm UF membrane.
One Large Cartridge, Four Filtration Stages
designed to reduce sediment, chlorine, odors, bacteria, viruses and other impurities for cleaner, better-tasting drinking water while retaining natural minerals.
Diagram of ChengrongTimes 4-stage under sink water filter cartridge with sediment, activated carbon fiber, PP, and 0.01 μm ultrafiltration layers for removing particles, chlorine, bacteria, viruses and other impurities.
The four filtration stages work together in a scientifically designed sequence to progressively reduce sediment, rust, chlorine, bacteria, viruses, and other unwanted impurities while retaining natural minerals for cleaner, better-tasting drinking water.

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.

  • 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.
ChengrongTimes Stainless steel under sink water filter with a gooseneck faucet dispensing filtered water during a real-life setting.
Up to 660 L/h high-flow filtration delivers clean drinking water without stripping away naturally occurring minerals”
  • 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.
Dual-outlet under sink water filter shown at a kitchen sink, with one outlet dispensing drinking water and the other providing produce-washing water, highlighting 16 L/min flow and 0.9 seconds per glass.
Dual-outlet design delivers high-flow filtered water for flexible use
4-stage filtration for drinking and cooking, 3-stage filtration for washing food and dishes, with zero wastewater and no drain connection.
ChengrongTimes stainless steel under sink water filter installed beneath a kitchen sink with a compact design and no drain connection required.
Compact under-sink installation with no drain connection required, saving cabinet space while helping reduce the risk of secondary contamination.

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.

ChengrongTimes under sink water filter with digital displays showing real-time flow rate, total water usage, and blue and red filter replacement indicators.
Blue-to-red filter life indicator tracks actual water usage and flow rather than a preset countdown, turning red at 100,000 liters to signal filter replacement.

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.

ChengrongTimes factory ultrasonic cleaning area for high-temperature cleaning of stainless steel water filter housings.
Every stainless steel filter housing undergoes high-temperature ultrasonic cleaning to remove processing residues and help ensure a cleaner, more hygienic water-contact surface.