1. Introduction
Thank you for choosing the FilterTech 4EA Replacement Water Filter Set. This set is specifically designed to provide clean, filtered water for your Cuckoo CP-F602HW water purifier. This manual provides essential information for the proper installation, operation, and maintenance of your new filter set to ensure optimal performance and longevity.
Please read this manual thoroughly before installing and using the filters. Keep this manual for future reference.
2. Product Overview
The FilterTech 4EA Replacement Water Filter Set includes four 8-inch filters, providing a full year's supply for regular replacement cycles. These filters are constructed from carbon fibre and rubber, designed for effective water purification.

Image 1: The FilterTech 4EA Replacement Water Filter Set, showing four individual filter cartridges.
Package Contents:
- 4 x 8-inch Water Filter Cartridges (Carbon Fibre, Rubber)
3. Setup and Installation
3.1 Pre-Installation Flushing
Important: Before connecting any new filter to your water purifier, it is crucial to flush each filter thoroughly. This process removes any carbon powder (charcoal powder) that may be present from the manufacturing process and ensures optimal filter performance.
- Connect one end of the new filter to a water source (e.g., a faucet with an adapter) and the other end to a drain or bucket.
- Allow water to flow through the filter for approximately 2 minutes (or until about 4 liters of water have passed through). This will discharge air and flush out loose carbon particles.
- Repeat this flushing process for each filter cartridge in the set before installation.
3.2 Filter Installation
Refer to your Cuckoo CP-F602HW water purifier's original instruction manual for specific filter housing access and removal procedures. The general steps for replacing filters are as follows:
- Turn off the water supply to your Cuckoo water purifier and unplug the unit from the power outlet.
- Open the filter housing compartment according to your purifier's manual.
- Carefully remove the old filter cartridges. Be prepared for some residual water to drain.
- Insert the pre-flushed new FilterTech cartridges into their respective positions. Ensure they are securely seated and oriented correctly (follow any flow direction arrows on the filter or housing).
- Close the filter housing compartment.
- Restore the water supply to the purifier and plug the unit back into the power outlet.
- Run water through the purifier for a few minutes to ensure proper sealing and to clear any remaining air from the system. Check for leaks.
4. Operating Instructions
Once the new filters are installed and flushed, your Cuckoo CP-F602HW water purifier is ready for normal operation. The FilterTech replacement filters are designed to integrate seamlessly with your existing system.
Filter Replacement Schedule:
- It is recommended to replace your water filters every 3 months, or as indicated by your Cuckoo CP-F602HW water purifier's maintenance alerts, to maintain optimal water quality and system performance.
- This 4EA set provides a one-year supply of filters based on a quarterly replacement schedule.
5. Maintenance
Beyond regular filter replacement, minimal maintenance is required for the filters themselves. Ensure the area around the filter housing remains clean and dry. Do not attempt to clean or reuse spent filter cartridges; dispose of them responsibly.
Storage:
Store unused filter cartridges in their original packaging in a cool, dry place away from direct sunlight and chemicals. Ensure they remain sealed until ready for use.
6. Troubleshooting
- Low Water Flow:
- Ensure filters were properly flushed before installation to remove carbon fines.
- Check if filters are installed correctly and securely.
- Verify that the water supply to the purifier is fully open.
- If filters are old, they may be clogged and require replacement.
- Unusual Taste or Odor:
- Ensure filters were thoroughly flushed during pre-installation. Repeat flushing if necessary.
- Check filter expiration or replacement date. Old filters can lose effectiveness.
- Verify that the filters are genuine FilterTech products.
- Leaks from Filter Housing:
- Ensure filters are correctly seated and tightened in their housing.
- Check O-rings or gaskets within the filter housing for damage or improper placement.
- Consult your Cuckoo CP-F602HW water purifier's manual for specific leak troubleshooting.
7. Specifications
| Brand | FilterTech |
| Compatible Model | Cuckoo CP-F602HW |
| Number of Items | 4 |
| Material | Carbon Fibre, Rubber |
| Product Dimensions | 6.4D x 6.4W x 20.3H Centimetres (each filter) |
| Certification | CE |
8. Warranty and Support
FilterTech products are manufactured to high-quality standards. For specific warranty information or technical support regarding your FilterTech replacement filters, please refer to the seller's information on your purchase platform or contact FilterTech customer service directly. Keep your proof of purchase for warranty claims.
For issues related to your Cuckoo CP-F602HW water purifier itself, please consult the Cuckoo manufacturer's support channels.