Marina I25 Replacement Cartridge

From the Marina range. I25 replacement power cartridge made specifically for the marina i25 internal filter (a131). The outside of the power cartridge features polyester foam to trap fine particles. While the chambers contain carbon to remove pollutants & odours, zeolit to eliminate toxic ammonia for a cleaner, healthier aquarium environment. Provides mechanical, biological & chemical filtration. Easy to replace, for best result replace every 4 weeks. 2pcs per pack.