About This Perfect Compatibility: Our extra small filter cartridges is perfect compatible for QuietFlow E Internal Power Filter Size 3 on the market. With this aquarium filter cartridge, you can keep the water healthy and clean for your fishes all the time. Excellent Triple Filtration Performance: The filter cotton is made of cotton and activated carbon, which can filter and absorb 99% of the impurities, so as to keep the water source clean and the healthy growth environment of fish. Upgraded 6-grid Filtration Structure: We upgraded the structure of filter cartridges to use high density cotton + 50% more nutshell activated carbon + upgraded 6-grid design, which make the distribution of carbon more uniform without accumulation. Maximize water circulation efficiency and ensure the fish tank is always clean. Quick Installation - Remove the used cartridge and flush the new cartridge under clean water or aquarium water 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 - We recommend that you replace the filters every 2-4 weeks to maintain water quality. We are professional in the field of Aquarium Filter Cartridges, if you have any problems, please feel free to contact us. We maintain a thorough quality control process to ensure compatibility with QuietFlow E Internal Power Filter.
