The Marina i25 Replacement Power Cartridge is made specifically to fit inside the Marina i25 internal filter. 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.Note : For best results replace every 4 weeks.Key Features :
2-packProvides mechanical, biological, and chemical filtrationPolyester foam traps fine debris; carbon removes pollutants and odors; and zeolite eliminates toxic ammoniaEasy to replaceDesigned to fit the Marina i25 Internal Filter (A131),
