From the Fluval range. Designed for use with the marina i110 & i160 filters. Effectively filter water through 3 stages of filtration, providing a cleaner & healthier aquarium environment. The filters uniquely designed power cartridge (included) enable the water to enter the center of the cartridge for an effective mechanical, chemical & biological filtration process & exit from the polyester foam layer leaving all trapped debris inside the cartridge ensuring crystal clear water. Please follow instructions for cartridge replacement, replace every 4 weeks. 2pcs per pack.
