3-layer filtration:Length x width approx. 5.3 x 2.2in(135x55mm) Aquarium Filter Cartridge selected high‑quality filter cotton + activated carbon materials, safe and durable to use. 3-Layer filtration system，effective purification your fish tank
Fish Tank Filter Cartridge Replacement:To get the best results, please replace the filter element as needed every 2 to 4 weeks. Fish tank filter cotton compatible with most fish tank filters. Please confirm the size is suitable for your filter before purchasing
Purify The Fish'S Living Environment:Charcoal cartridge for fish tank，captures residuess, fish residuess, absorption of heavymetals, odorss and decolorization, etc
Easy to Replace:Simply rinse with cold water to remove aquarium filter cotton cartridge toner and then insert filter cotton into filter slot, which can be replaced in a few seconds
Package List:Package included 12pcs length x width approx. 5.3 x 2.2in(135x55mm) fish tank filter cotton replacement, easy to install and remove, providing clean water for fish tank.Meet your replacement needs for a period of time.Please confirm the right size before ordering
