Dophin Filter Cartridges:
Dophin power filter is a mechanical and biological filtering systyem. Special carbon cartridge to purify water, remove odor and offer housing compartment for the biological bacteria. Bio-cartridge enhances biological filteration and guaranties optimum colonization of nitrifying bacteria. Easy to use, fill up water and plug on. Easy to maintain, Every 2 months replace a new carbon cartridge to achieve best result.