1. Product Overview
Thank you for choosing ALTHY products. The ALTHY U200PRO under-sink water purifier utilizes Nano antibacterial carbon rod filter elements to provide clean and safe drinking water.
The U200PRO water purifier is designed to effectively filter sediment, rust, 99% residual chlorine, and chloride from your water. Its carbon rod filter element incorporates MetSorb Adsorbent Media, which is NSF certified and patented. This advanced media efficiently removes heavy metals such as cadmium, lead, chromium, and arsenic, achieving a removal rate of over 90%.
Note: The AL-U200Pro does not reduce the TDS (Total Dissolved Solids) value of water. TDS value is not the sole basis for judging water quality.



2. Safety Information
Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in product damage or personal injury.
2.1. Prohibitions ⚠
- Do not use accessories not approved by ALTHY. Unauthorized accessories may cause mechanical failure and will void the warranty.
- In case of any malfunction, immediately turn off the main water supply to the unit. Do not operate a defective product.
2.2. Warnings ⚠
- Children and individuals with disabilities should only use this product under the direct supervision of a guardian.
- If a malfunction occurs, ensure the main water supply is turned off immediately. Do not attempt to use a faulty product.
- All installation pipelines must comply with international safety standards.
2.3. Important Notes
- If additional accessories are required for installation, please ensure they are high-quality products.
- This product is designed for municipal tap water. The applicable water pressure range is 15-100 psi (100-689 kPa), and the applicable water temperature is 5°C~38°C (41-100°F). If your water pressure exceeds this range, a pressure reducing valve must be installed.
- This product is suitable for indoor installation only. Ensure there is a reliable floor drain within 1.5 meters (approximately 5 feet) of the installation location to prevent potential water damage from leaks.
- If the product will not be used or left unattended for more than 3 days, please shut off the water source to prevent damage or leakage due to external factors.
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
3. Packing List
The following items are typically included with the ALTHY U200PRO Under Sink Water Purifier system. Please check that all components are present before installation.
- Water purifier (with filter)
- Water purifier faucet
- Three-way valve
- User Manual (this document)
- Faucet hanging plate
- Raw material belt (Teflon tape)
- Water purifier connector
- PE pipe
- Self-tapping screws (x3)
- Expansion tubes (x3)
- Buckles for water purifier connector (x5)


4. Setup and Installation
This product offers a flexible and convenient water supply solution. The recommended installation method is as follows:
4.1. Site Selection
- Select a suitable installation location, typically under the sink. Ensure a floor drain is available nearby.
4.2. Connecting the Water Purifier
- Connect the water purifier to your household tap water point. Pay close attention to the following during installation:
- When installing pipe joints, any joints without gaskets should be wrapped with an appropriate amount of raw material tape (Teflon tape) to ensure a watertight seal.
- Refer to the installation diagram for proper connection of the three-way valve, PE pipe, and water purifier faucet.


5. Operating Instructions
- After completing the installation, open the three-way valve.
- Turn on the water purifier faucet and flush the water for at least 10 minutes until the water runs clear. This purges air and loose carbon fines from the new filter.
- After this initial flush, the water purifier is ready for normal use.

6. Maintenance: Filter Replacement
Regular filter replacement is crucial for maintaining optimal water quality and purifier performance. The filter life is typically 6-12 months or 8000 gallons, depending on water quality and usage.
6.1. Filter Replacement Method
- Close the three-way valve to shut off the water supply to the purifier.
- Open the water purifier faucet to drain any remaining water from the system and relieve pressure.
- Unscrew the filter bottle counterclockwise by hand to remove the old filter element.
- Tear off the protective film from the new filter element.
- Screw the new filter element into the base, then place it back into the filter bottle and tighten the filter bottle clockwise by hand until secure.
- After replacement, follow the operating instructions (Section 5) to flush the new filter.

7. Troubleshooting
If you encounter any issues with your ALTHY U200PRO water purifier, refer to the table below for common problems and their solutions.
| Symptom | Possible Causes | Solutions |
|---|---|---|
| Clean water flow drops significantly | Filter clogged Water pressure is too low Ball valve not fully open | Replace with a new filter element Take measures to increase water pressure Check and fully open the ball valve |
| Poor effluent quality | Filter failure Long-term inactivity (more than 3 days) Source water poor quality | Replace with a new filter element Turn on the faucet and let water flow for at least 10 minutes Ensure the water source is municipal tap water |
| Water leakage | PE pipe not inserted correctly Joint damage, PE pipe rupture, three-way ball valve damage | Install the PE pipe in place Replace corresponding accessories, or contact ALTHY customer service |
8. Specifications
| Parameter | Value |
|---|---|
| Product Name | ALTHY Under Sink Water Purifier |
| Model | AL-U200Pro |
| Maximum Flow Rate | 1.6 GPM (3.0 Liters/Minute) |
| Total Filtered Water Capacity | 8000 Gallons (depends on water quality) |
| Filter Method | Nano antibacterial carbon rod (5 Stage Filtration: PPF, ACF, AGF, KDF, MetSorb®) |
| Filtration Accuracy | 0.01 micron |
| Filter Life | 6-12 months (depends on water quality) |
| Working Water Pressure | 15-100 psi / 100-689 kPa (0.1-0.4 Mpa) |
| Applicable Water Temperature | 5-38°C / 41-100°F |
| Applicable Water Quality | Municipal Water |
| Power Source | Non-electric |
| Material | Ultrafiltration Membrane |
| Purifying Position | Terminal Purification |
| Installation Type | Under Sink (Kitchen/Table) |
| Function | Direct Drink |
| Certifications | CE, RoHS, Water Mark, NSF/ANSI (NSF 42 & 53) |

9. User Tips
- TDS Levels: Remember that these filters are designed to remove contaminants while retaining beneficial minerals, so they do not lower TDS (Total Dissolved Solids) levels. A high TDS reading does not necessarily indicate poor water quality with this type of filter.
- Filter Life: The cartridge typically lasts 6-12 months or 8000 gallons. This duration can vary based on your local water quality and usage frequency.
- Initial Flush: Always perform the initial 10-minute flush after installing a new filter to ensure optimal performance and clear water.
- Packaging: Filters often arrive well-packaged, sometimes with bubble wrap or air cushions, to prevent damage during transit.
10. Warranty and Support
The ALTHY U200PRO Under Sink Water Purifier comes with a One Year Guarantee from the date of purchase.
For further assistance, technical support, or to inquire about replacement parts, please contact ALTHY customer service.
A detailed user manual in PDF format is also available for download: ALTHY U200PRO User Manual (PDF).