• 1. Perfect Fit for CompatibleTetra Whisper Filters Includes 6 medium replacement cartridges (3.5" x 5.5"), compatible with Whisper PF10, IQ10, 10i, and ReptoFilter 90 GPH, ideal for 5-10 gallon aquariums.
• 2. Zeolite & Maifan Stone Benefits Zeolite absorbs ammonia, heavy metals, and toxins, stabilizing pH. Maifan stone releases essential minerals, improving water quality for healthier fish and plants.
• 3. Advanced 5-Stage Filtration Dual-sided mesh traps debris, ultra-activated carbon purifies, zeolite absorbs toxins, ceramic media removes heavy metals, and Maifan stone enriches water.
• 4. Easy Installation Turn off the filter, remove the old cartridge, rinse the new one, and insert it—ensuring a perfect fit and optimal filtration.
• 5. Regular Replacement for Best Results Replace every 2-4 weeks based on tank conditions for clean, healthy water.

• Package Dimensions ‏ : ‎ 5.83 x 3.9 x 3.74 inches; 8.47 ounces
• Date First Available ‏ : ‎ January 13, 2025
• Manufacturer ‏ : ‎ Guarm
• Country of Origin ‏ : ‎ China