3 Stage Home Water Filter – Under-Sink Water Purifier Manufacturer
Clean water is essential for a healthy life. Our 3-stage under sink home water filter delivers high-efficiency filtration to ensure that your family enjoys safe, great-tasting water straight from the tap.
With increasing concerns about chlorine, heavy metals, bacteria, and other contaminants in tap water, this system has become a modern kitchen essential.
3-Stage Filtration System Overview
This high-performance system combines three advanced filter elements to deliver purified water:
PP Cotton Filter Cartridge
- Removes sediment, rust, and large particles
- Extends the life of subsequent filters
Ultrafiltration (UF) Membrane Filter
- Filters out bacteria, viruses, and fine particles without removing essential minerals
Sintered Carbon Rod Filter
- Effectively removes chlorine, organic compounds, and odors
- Improves taste and ensures chemical-free water
Optional filter element combinations are available to meet specific market or user needs.
Three-stage water purifier Technical Specifications
| Product Size | 360*120*396mm |
| product information | Machine head, filter element (1.PP cotton filter element, 2.ultrafiltration membrane filter element, 3.sintered carbon rod filter element) |
| Waterway Port | The water inlet and outlet ports are both 3/8″, quick-connect |
| Pressure resistance | After being connected to 87psi air pressure for 30 seconds, there should be no deformation or damage, and no leakage at any connection point. |
| Water hammer performance | Can withstand 0-145psi pressure 100,000 times water hammer test without deformation, damage or leakage |
| Burst pressure | Burst pressure ≥ 319psi. When the water pressure rises to 319psi, no damage or leakage should occur |
| Flow performance | When the water inlet pressure is 50psi, the water outlet flow rate is ≥1gpm |
| Life performance | When the residual chlorine concentration of the inlet water is adjusted to 2ppm±10% and the flow rate is 1.0gallon/min, the initial residual chlorine removal rate is ≥95%, the service life is ≥1500gallon (sintered carbon rod filter element), the service life is ≥1500gallon (carbon fiber rod filter element) NSF/ANSI42 standard, the service life is ≥1000gallon (PP cotton filter element), the service life is ≥1500gallon (ultrafiltration membrane filter element) |
| Health and Safety | Comply with NSF/ANSI42 standards |
| Applicable water temperature/pressure | 5～38℃/10～100psi |
| Water output per minute | 2-4L/minute |
| Filter life | Pre Filter 6months; Other filter elements 12months |
| Function | Effectively filter bacteria, heavy metals, sediment, residual chlorine and other impurities in water to improve taste |
| Certification | WRAS, WATERMARK, NSF |
Key Benefits
- High Filtration Efficiency
Removes chlorine, bacteria, heavy metals, and sediment effectively.
- Improves Taste and Clarity
Makes tap water taste fresh and clean-ideal for drinking, cooking, or making beverages.
- Under-Sink Design
Space-saving and easy to install-perfect for modern kitchens.
- Durable and Safe
Pressure-tested, corrosion-resistant, and certified for international markets.
- Customizable Filter Combinations
We can adapt the filter cartridge configuration to suit your regional water conditions or end-customer needs.
Your Trusted 3-Stage Home Water Filter OEM/ODM Supplier
At Xiamen Smart Water Technology Co., Ltd., we provide end-to-end OEM and ODM solutions for global kitchen water filtration brands. With:
- Over a decade of manufacturing experience
- 5 invention patents, 21 utility patents, 28 appearance patents
- ISO9001-certified quality systems
- Advanced R&D capabilities
- Global certifications including WRAS, WaterMark, NSF, CE, and RoHS
We support your business with flexible MOQs, private labeling, and customized filtration systems designed to meet your market requirements.
Your Global Partner in Safe and Clean Drinking Water
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