HiTauing 15packs Filter Cartridges for Top Fin EF-S Element and BF5 BETTAFLO

The specific size of our aquarium filter cartridge is 2.1 in L x 3.7 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 15 pack aquarium filter cottons, which you can change every 2-4 weeksThe 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 fishAccording 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 timesSuggest to change filter cartridge every 2-4 weeksQuick Installation: Just remove used cartridge and rinse new cartridge under cool water to remove dust. After rinsingSmoke free clean homeNew in box (box show wear) flawless for everyday use. premium materials and excellent craftsmanship ensure long-lasting durability.