Carkio 12 Pack Large Replacement Filter Cartridges, Carbon Filter Cartridges Compatible with Tetra Whisper EX30 / EX45 / EX70 Fish Tank Filter, Aquarium Fish Tank Cartridges Replacement - HMZUS7404-3

• Compatibility: Designed exclusively for compatible with Tetra Whisper EX30, EX45, and EX70 Fish Tank Filters, our carbon filter ensures a perfect fit and optimal performance. Measuring 17.5cm (6.93in) in length and 13cm (5.12in) in width, our fish tank carbon filter is the result of extensive and rigorous testing. It is guaranteed to be odorless and crack-free, ensuring long-lasting use. Premium Filtration Materials: Made from high-quality coconut shell charcoal, and a double-layer of fiber cotton, our filter element is upgraded for superior odor removal and impurity filtration. This combination keeps the water clean, fostering a healthy environment for fish growth. User-Friendly Replacement Process: For hassle-free installation, rinse the replacement cartridge with cold water to remove any dust from transportation and packaging. Align the "FRONT" direction label with the filter element bracket and effortlessly insert the filter element into the filter chamber. Value-Pack with Replacement Guidance: This package includes 12 filter cartridges, offering you convenience and value. We recommend replacing the filter every 2-4 weeks, although the frequency may vary based on your aquarium's specific working conditions. Great Customer Support: We are committed to producing top-tier filter cartridges for fish tanks, leading the industry in quality and craftsmanship. We maintain stringent quality control to ensure compatibility with Tetra Whisper EX30 / EX45 / EX70. Should you have any inquiries or concerns, our dedicated customer service team is always ready to assist you.