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Emporer 4-pack Filter Cartridges provide complete mechanical and chemical aquarium filtration. Contains two full ounces of premium grade Black Diamond activated carbon.
These pre-assembled filter cartridges remove solid waste and dirt particles with a 44 square inch surface area polyfiber pad. Chemical filtration is achieved with two ounces of Black Diamond activated carbon, the highest grade available. It absorbs many harmful contaminants, discoloration and odors to leave water clear and sparkling clean. The patented design of the filter cartridge evenly distributes the carbon for maximum water contact with no by-pass. Cartridges should be changed approximately once a month. These cartridges are for use with the Emperor Filter System and the Emperor 280 Filter system.