About This

• 16pcs Large Assembled Replacement Filter Cartridges compatible with Whisper Bio-bag Filters: Unit Size: 5.1 * 6.7 inches. This filter cartridge for aquarium is compatible with whisper bio-bag external filter PF20, PF30, PF40, PF60, whisper external filter IQ20, IQ30, IQ45, IQ60, whisper 20i & 40i internal filter and ReptoFilter 50 gallons (125 GPH).
• An Exclusive Design of Front Green + Back White Dense Dual-Sided Mesh: The carbon aquarium filter cartridge is easy to distinguish front and back, improve install efficiency. Easy to install and to use, only rinsing under running clean water or with aquarium water, the unique green mesh design partly helps remove excess phosphate from the water, keep the aquarium system clean and healthy
• The Four-Stage Filtration Help Keep the Water Crystal Clear and Healthy: The filter cartridges is made of dense dual-sided mesh, Better thickness provides better filtration, over 40g ultra-activated carbon and also add processed zeolite, which can effectively filter and absorb impurities to keep the clean water source and provide the healthy growth environment for fish
• Our Filter Cartridges for Aquarium Add Newest Filter Media-Processed Zeolite: Compared to crushed granule zeolite, our spherical zeolite is cleaner and more advanced, It can adsorb ammonia, heavy metals and other harmful components. Balance the PH value to achieve a stable water state. Improve the fertilization efficiency of aquatic plants, make your aquatic plants grow faster and healthier
• Assembled Replacement Filter Cartridges and Ready to Use: With pre-assembled filter media and frame, the top is sealed, We are professional in the field of Aquarium Filter Cartridges, if you have any problem. TIPS: We recommend that you replace the filters every 2-4 weeks to maintain water quality. (It depends on the number of fish in fish tank)