K1 media Fluidized Moving Bed Filter for Aquarium ---Water Polishing System/ K1 Media Reactor for Crystal and Healthy Water. New Aquarium Filter with the Latest Technology. This innovative polishing system using K1 Media filter delivers crystal clearest water to your aquarium. All In ONE Ultimate Filter System: be your fish tank water doctor plus beautiful modern design. Size: Small 10 (60-120 Galllon Tank).Medium 15 (120-180 Gallon Tank). Large 18 (240-300 Gallon Tank). This item is in the category "Pet Supplies\Fish & Aquariums\Filters". The seller is "ultimate-acrylics" and is located in this country: US. This item can be shipped to United States.