1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your AQUA CREST Faucet Filter Replacement, model AQU-CF08A. This filter is designed to provide clean, filtered water directly from your faucet.
The AQUA CREST AQU-CF08A filter is tested and certified by NSF International against NSF/ANSI standard 42 for the reduction of chlorine, taste, and odor, and to NSF/ANSI 372 for lead-free material. It utilizes a premium natural coconut activated carbon block for high-efficiency filtration.

Image: AQUA CREST filter highlighting NSF/ANSI 42 certification for chlorine reduction and NSF/ANSI 372 for lead-free material, depicted with a protective shield.
2. Compatibility
The AQUA CREST AQU-CF08A faucet filter is compatible with various PUR PLUS faucet water filter systems and is interchangeable with PUR RF-9999 faucet water filters. It is designed for use with PUR Classic, Advanced, and Horizontal Faucet Mounts.
Compatible PUR models include, but are not limited to:
- PFM100B
- PFM450S
- FM-3333
- FM-9400B
- FM-3700B
- FM-3700
- FM-2000B
- FM-9000B
- FM-4000B
- FM-4100B
- FM-2500V
- FM-3400B
Note: The above compatibility claims are for reference purposes only and have not been tested or certified by NSF.

Image: A faucet-mounted water filter system in a modern kitchen setting, demonstrating compatibility with various faucet types.
3. Setup and Installation
Follow these steps to install your AQUA CREST faucet filter replacement:
- Prepare the Filter: Before installation, soak the new filter in clean tap water for 3 minutes. This helps to flush the filter and release any trapped air bubbles.
- Remove Old Filter: If replacing an existing filter, twist off the top cover of your faucet mount system and remove the old filter.
- Insert New Filter: Carefully insert the AQUA CREST filter into the device, ensuring it is seated correctly.
- Secure Cover: Twist the top cover back onto the faucet mount system until it is securely closed.
- Reset Indicator (if applicable): If your faucet mount has a filter life indicator, make sure to reset it properly after replacing the filter. If the indicator does not turn green, refer to your faucet mount's specific instructions for resetting.

Image: A three-step visual guide demonstrating how to replace the filter: 1) Twist off the top cover, 2) Insert the filter into the device, 3) Twist the top cover back on.
4. Operating Instructions
Once installed, your AQUA CREST faucet filter is ready for use. Simply activate the filtered water function on your faucet mount to dispense purified water. The filter provides a fast and steady water flow for your convenience.
The filtered water is suitable for various household needs, including:
- Brewing coffee or tea
- Mixing baby formula
- Washing fruits and vegetables
- Cooking

Image: A hand holding a glass being filled with clear, filtered water from a faucet-mounted filter, illustrating fast and steady water flow.

Image: A collage showing various applications of filtered water, including brewing coffee, preparing baby formula, washing fruits, and cooking.
5. Maintenance and Filter Replacement
For optimal performance and to ensure continuous access to healthy drinking water, it is recommended to replace the AQUA CREST filter every 3 months. The specific replacement time may vary depending on your local water quality and usage frequency.

Image: An AQUA CREST filter surrounded by water, with text highlighting a 3-month filter lifespan.
6. Troubleshooting
If you encounter issues with your AQUA CREST faucet filter, consider the following common solutions:
- Reduced Water Flow: This often indicates that the filter is nearing the end of its lifespan or is clogged. Replace the filter as per the maintenance schedule. Ensure the filter is properly seated during installation.
- Unusual Taste or Odor: If you notice an unusual taste or odor in the filtered water, it may be time to replace the filter. Ensure the initial soaking and flushing procedure was followed during installation.
- Leaking: Check that the filter is correctly inserted and the top cover of the faucet mount is securely tightened. Refer to your faucet mount's specific instructions for proper assembly.
- Filter Indicator Not Resetting: If your faucet mount has an electronic indicator, consult its specific manual for instructions on how to reset it after filter replacement.
7. Specifications
| Brand | AQUA CREST |
| Model Name | AQU-CF08A |
| Part Number | AQU-CF08A |
| Item Weight | 9.5 ounces (9.52 Ounces) |
| Product Dimensions | 5.12 x 7.68 x 4.92 inches |
| Color | Blue |
| Style | Filter |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 (per pack) |
| Special Feature | Filter |
| Batteries Included? | No |
| Batteries Required? | No |
| UPC | 840814158746 |
8. Warranty and Support
For information regarding product warranty or technical support, please refer to the documentation provided with your original faucet mount system or contact AQUA CREST customer service directly. Contact details can typically be found on the manufacturer's website or product packaging.





