driamor 10 Pack PF-S Fish Tank Filter Cartridges, Top Fin Silenstream PF-S Small Filters Cartridge Thickened Cotton with Zeolite Replacement Aquarium Filter Cartridge for TOP FIN PF10 Power FiltersBrand: driamor Features: Top Fin PF S Small Filter Cartridge10pcs Top Fin PF S Filters, Unit Size: 5 * 3 inches. This aquarium filter cartridge is compatible with Top Fin Silenstream PF10 Power Filters. Four Stage FiltrationThe filter is made of thicked cotton, Better thickness provides better filtration, 20 grams of active carbon, 10 grams of zeolite, which can effectively filter and absorb impurities in the water, especially absorb ammonia and