Marineland brand is the world’s leading brand of innovative equipment and environments for consumers wishing to create the ultimate aquatic showcase. Committed to fishkeeping success for over 40 years, the brand is the professional’s choice for commercial display systems and scientific research. Whatever you’re passionate about – freshwater or saltwater, big or small, beauty or science – make your aquarium your own. The Marineland® Refillable Media Cartridge is for use with carbon or other media to help keep aquariums clean. The refillable frame fits the Marineland Fits Emperor models PF280B, PF280BD, PF400B, and PF400BD. The easy-fill cartridge snaps open and locks tight to avoid spillage. The ribbed design allows water to flow freely for maximum effectiveness. This container can be filled with carbon or other filter media – refill monthly with Marineland Diamond media and slide the frame into the filter. Clean, sparkling water is the mark of a healthy, thriving aquarium. The amount of filtration needed to maintain an aquarium depends on a number of variables. These include tank size, individual maintenance habits and fish population. Whatever your individual needs, Marineland brand has the filtration products you need to deliver on-target, advanced filtration.