About This

• Perfect Fit：Precisely sized at 6.7 x 5.1”, the large fish tank filter cartridge is compatible with Tetra Whisper Bio-Bag External Filter PF20, PF30, PF40, PF60, Whisper External IQ20, IQ30, IQ45, IQ60, Whisper Internal 20i & 40i filters and TetraFauna ReptoFilter 50 gallons (125 GPH). It's Ideal for 20-60 gallon fish tanks or aquariums
• Multi-stage Filtration：Made with premium coconut shell carbon and natural zeolite, the fish filter cartridge delivers exceptional cleaning—removes impurities, particles, ammonia, and heavy metals. It runs quietly for undisturbed aquatic life
• Stable Water Quality：Stabilizes pH, eliminates odors, and keeps water crystal clear—filter for fish tank supports thriving fish, plants, and a balanced ecosystem
• Durable Design：Reinforced double-layer mesh with enhanced thickness ensures long-term stability and reliable performance, maintaining clear water and healthy growth environment for your aquatic pets
• Easy Maintenance：Simple to install, remove, and clean. Rinse new turtle tank filter replacement briefly before use; replace every 2-4 weeks (based on tank population) for optimal water quality
• Reliable Performance：Built with high-quality materials for consistent durability, tetra large filter cartridges ensures free & stable water flow and maintains clear, clean water