Switior 12 Pack Aquarium Filter Cartridge for Whisper Bio-Bag Filters, Large Replacement Filter Cartridges for Whisper Filters 20i,40i/IQ20,30,45,60/PF20,30,40,60 and ReptoFilter

Replacement Filter Cartridge for Whisper Bio-bag Filters：Large Replacement Filter Cartridges are compatible with Whisper External IQ20, IQ30,IQ45,IQ60 Power Filters/20i & 40i Internal Filter/External Filter PF20, PF30, PF40, PF60 and ReptoFilter 50 gallons (125 GPH). Ideal for 10-30/20-40/30-60 gallon fish tanks aquariums Five-stage Filtration System：This filter is made of dense double-sided mesh, Better thickness, effectively catches debris and fish waste excrement. ultra-activated carbon instead of ordinary carbon, which has a longer-lasting and more complete filtration. and also adds two new processed aquarium filter media - ceramic and zeolite. It helps to effectively absorb heavy metals and keep PH balance of the water NEW Aquarium Filter Media： Ceramics, works to absorb heavy metals and other harmful components from water and improve the water quality. Zeolite effectively balances the pH value of water, achieving a stable water state, and can also improve the fertilization efficiency of aquatic plants, allowing your aquatic plants to grow faster and healthier Easy Installation: Turn off and remove the used cartridge and flush the new cartridge under cool clean water or water of aquarium to remove dust. After rinsing, insert the cartridge into the flushing chamber and make sure the filter cartridge fits completely into the chamber After-sales service：TIPS: For optimal performance, we recommend that you replace the filters every 2-4 weeks to maintain water quality. If you have any questions about our large aquarium filter cartridges, please contact us. We will help you solve the problem as soon as possible