1. Introduction
Thank you for choosing the Nobleza Cat Fountain Filter Set. This set is designed to provide your pet with fresh, clean, and healthy drinking water by effectively filtering impurities. Regular replacement of these filters is crucial for maintaining water quality and promoting your pet's well-being. Please read this manual carefully before use to ensure proper installation and maintenance.
2. Product Overview
The Nobleza Cat Fountain Filter Set includes 5 activated carbon filters and 10 sponge pre-filters, designed for use with the Nobleza 4L Cat Water Fountain. These filters work together to provide a comprehensive filtration system.

Image: Contents of the Nobleza Cat Fountain Filter Set, showing 5 rectangular carbon filters and 10 black sponge filters.
2.1 Triple Filtration System
The filters utilize a multi-stage filtration process to ensure optimal water purity:
- Non-woven Fabric Layer: Catches hair and larger debris.
- Activated Carbon: Removes odors, bad tastes, and chlorine from the water.
- Ion-Exchange Resin: Further purifies water by removing heavy metals and softening water.
- Pre-filter Sponge: Blocks off hair, dust, and food debris before water enters the pump, extending the life of the main filter.

Image: Exploded view diagram showing the layers of the filtration system: non-woven fabric, activated carbon, and pre-filter sponge.
2.2 Compatibility
These filters are specifically designed for the Nobleza Cat Fountain with a 4-liter capacity. Filters from other brands may not be compatible and could affect the fountain's performance or water quality. Always use original Nobleza filters for optimal results.
3. Setup and Installation
Follow these steps to properly prepare and install your Nobleza Cat Fountain Filters:
3.1 Pre-use Preparation
- Soak the Filter: Before first use, soak the activated carbon filter in clean water for 5 minutes.
- Rinse Thoroughly: Rinse the activated carbon filter under running tap water for at least 30 seconds to remove any loose carbon particles. This prevents carbon dust from entering the fountain water.

Image: Two-step guide showing how to soak the filter for 5 minutes and then rinse it for 30 seconds under a faucet.
3.2 Filter Installation
Refer to your Nobleza Cat Fountain's manual for specific instructions on accessing the filter compartment. Generally, the steps are as follows:
- Disassemble: Turn off and unplug the fountain. Remove the top tray and any existing filters.
- Open Filter Tank: Locate and open the filter tank lid within the fountain structure.
- Insert Sponge Filter: Place the sponge pre-filter into its designated slot, usually around the pump.
- Insert Carbon Filter: Place the prepared activated carbon filter into its compartment. Ensure it sits flat and securely.
- Close and Reassemble: Close the filter tank lid and reassemble the fountain components.
- Refill Water: Fill the fountain with fresh water to the recommended level.
- Power On: Plug in and turn on the fountain.

Image: Visual steps showing rinsing filters, opening the filter tank, placing filters inside, and closing the tank.
4. Maintenance and Replacement
Regular maintenance of your Nobleza Cat Fountain filters is essential for providing your pet with consistently clean water.
4.1 Filter Replacement Frequency
- Activated Carbon Filter: It is recommended to replace the activated carbon filter every 2 to 4 weeks. This ensures optimal filtration performance and prevents the buildup of impurities.
- Sponge Pre-filter: The sponge pre-filter should be cleaned weekly and replaced every 2 to 4 weeks, or sooner if it appears heavily soiled or damaged.
This filter set (5 carbon filters + 10 sponge filters) is designed to last approximately 3 to 6 months, depending on usage and water quality.
4.2 Benefits of Regular Replacement
- Ensures fresh and clean water for your pet.
- Reduces the risk of urinary tract infections by encouraging increased water intake.
- Prevents unpleasant odors and tastes in the water.
- Extends the lifespan of your cat fountain pump.
5. Specifications
Key specifications for the Nobleza Cat Fountain Filters:

Image: Diagram illustrating the dimensions of the sponge filter (7cm x 3.6cm) and the carbon filter (8.1cm x 3.6cm).
| Feature | Detail |
|---|---|
| Product Type | Cat Fountain Filter Set |
| Brand | Nobleza |
| Compatibility | Nobleza 4L Cat Fountain |
| Filter Material | Non-woven fabric, Activated Carbon, Ion-Exchange Resin |
| Sponge Material | Plastic (Sponge) |
| Carbon Filter Dimensions | Approximately 8.1 cm x 3.6 cm |
| Sponge Filter Dimensions | Approximately 7 cm x 3.6 cm (smaller sponge) and 8.1 cm x 3.6 cm (larger sponge) |
| Quantity | 5 Activated Carbon Filters, 10 Sponge Pre-filters |
| Recommended Replacement | Every 2-4 weeks for carbon filters |
6. Troubleshooting
If you encounter issues with your cat fountain's water quality, consider the following:
- Reduced Water Flow: This often indicates a clogged sponge pre-filter or a saturated carbon filter. Clean or replace the filters as recommended.
- Unpleasant Odor or Taste: This is a strong indicator that the activated carbon filter needs immediate replacement. Ensure the filter was properly rinsed before installation.
- Visible Debris in Water: Check if the sponge pre-filter is correctly installed and clean. If debris persists, the main carbon filter might be compromised or due for replacement.
- Cloudy Water: Ensure the filters were rinsed thoroughly before use to remove any loose carbon dust. If cloudiness persists, replace the filters.
7. Warranty and Support
For any questions regarding the Nobleza Cat Fountain Filter Set, or if you require assistance, please contact Nobleza customer support through your purchase platform. Please have your product details and purchase information ready.