About This

• Perfect Compatibility with Tetra Whisper EX Series: These replacement filter cartridges are specifically designed to fit Tetra Whisper EX30, EX45, and EX70 Power Filters. Each cartridge measures 6.69" x 5.12" for a snug, secure fit. For best results, replace every 2–4 weeks
• Upgraded 4-Stage Filtration System: Our cartridges feature an 8-grid design that evenly distributes filtration media for maximum efficiency. The 4-stage system includes: dual high-density cotton + premium activated carbon + zeolite – working together to remove debris, toxins, and odors while keeping water crystal clear
• Carbon + Zeolite for Superior Water Quality: We’ve upgraded the fill material by adding zeolite alongside nutshell activated carbon. Zeolite effectively absorbs ammonia, nitrogen, heavy metals, and harmful components, while balancing pH levels. The result is healthier, cleaner water for your fish
• Easy Installation & Maintenance: Simply rinse the new cartridge under cold water to remove any carbon dust. Then slide it into your Whisper EX filter using the "FRONT" orientation tab as a guide. No tools required – just snap it in and enjoy continuous, efficient filtration
• 100% Satisfaction & Value Pack: Each box includes 6 replacement cartridges – a full supply for long-term use. Whether you have a freshwater or saltwater aquarium, our salt-resistant, corrosion-resistant materials ensure lasting performance. If you have any questions, contact us for a prompt solution