Key features

• •Package Includes: You will receive 16 pieces of fish tank filter cartridge replacements. These sufficient number of filter cartridges can meet your daily use and replacement needs.
• •Compatibility: These filter cartridges are compatible with Top Fin EF-S, BF5 BETTAFLO filter, and desktop aquariums. Please note that our product is not sponsored or endorsed by, or affiliated with the brands it fits, including Top Fin.
• •Premium Material: Our filter cartridge replacements are made of premium APS and activated carbon, have a 3-layer filtering effect, which can effectively remove impurities, promoting a healthier aquatic environment and clear water.
• •Easy to Replace: Just remove the old cartridge and rinse the new cartridge under cool water to remove carbon dust, then insert it into the filter chamber. Please confirm the compatibility to ensure a perfect fit.
• •Replacement Recommendation: We recommend replacing the filter cartridge every 2-4 weeks to maintain clean and safe aquarium water and protect the health of fish and other aquatic life.