HiTauing 12 Packs Filter cartridge for Top Fin EF-S Element and BF5 BETTAFLO

Strong compatibility: The specific size of our aquarium filter cartridge is 21 in L x 37 in W It is very suitable for Top Fin BF5 bettaflo filter & desktop aquqriums With this aquarium filter cartridge you can keep your water healthy every moment It contains 6 pack aquarium filter cottons which you can change every 2-4 weeks Excellent Filtration Performance: The filter cotton is made of cotton and carbon and has 3-layer filtering effect which can filter and absorb 99% of the sundries to fish so as to keep the water source clean and the healthy growth of fish Long-term Replacement of the Aquarium Filter: According to the test the filter cotton has already withstood too much sundries for no more than four weeks so you need to replace it with a new one to keep the water source healthy and clean at all times Suggest to change filter cartridge every 2-4 weeks Quick Installation: Just remove used cartridge and rinse new cartridge under cool water to remove dust After rinsing insert caftridge into flter chamber to protect the health and safety of your fish all the time High-quality After-sales Service: HiTauing produces high-quality filter cartridges for fish tank filter and is in a leading position in the quality and craftsmanship of all our products We maintain a thorough quality control process to ensure compatibility with top Fin element ef-S If you have any questions please feel free to contact us