Marina i110/i160 Replacement Cartridges (2)

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 odours; and zeolite to eliminate toxic ammonia for a cleaner, healthier aquarium environment and crystal clear water.Note: For best results replace every 4 weeks.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 odours; and zeolite eliminates toxic ammonia?Easy to replace?Designed to fit the Marina i110 and i160 Internal Filters (A301, A306)