Marina i110/i160 Internal Filter Cartridge (2pk) (A-308)

Marina i110/i160 Internal Filter Cartridge (2pk) The Marina i110 /i160 Replacement Power Cartridge is made specifically to fit inside the Marina i110 and i160 internal filters.The outside of the power cartridge features polyester foam to trap fine particles; while the inside chambers contain carbon to remove pollutants and odors; and zeolite to eliminate toxic ammonia for a cleaner, healthier aquarium environment and crystal clear water. For model i160 : Do not replace both cartridges at the same time in order to ensure constant presence of beneficial bacteria. Key Features : • 2-pack • Provides mechanical, biological, and chemical filtration • Polyester foam traps fine debris; carbon removes pollutants and odors; and zeolite eliminates toxic ammonia • Easy to replace • Designed to fit the Marina i110 and i160 Internal Filters (A301, A306) Note : For best results replace every 4 weeks.