The AquaFX ROX 0.8 Carbon 4QT is a premium extruded activated carbon, meticulously selected by AquaFX, engineered to effectively eliminate unwanted organic compounds, pigments, and odors from both saltwater and freshwater aquariums. Its unique combination of large and small site porosity makes it an exceptional filtration medium, ensuring the maintenance of pristine water clarity and overall aquatic health in your tank. This high-quality carbon is distinguished by its unique extrusion size, which allows for a superior surface area, and is produced through a steam activation process followed by acid washing, ensuring it is among the highest quality carbons available globally. It boasts extremely low dust content, enabling exceptionally fast rinsing and a long operational run time. Key specifications include an Iodine number of 1000 min., Ball-pan hardness of 97 min., Methylene blue adsorption of 24g/100g, an impressive total surface area of 1225 m2/g, and an ash content of just 3%. These features provide a maximum broad adsorption range for a wide array of pollutants. Ideal for discerning hobbyists who prioritize crystal clear water and seek the best value in reactor carbon media, the AquaFX ROX 0.8 Carbon is designed for optimal performance when utilized in a media reactor. It can also be effectively placed in a high-flow area of your sump. Its proven capability to rapidly clarify water and sustain a healthy aquarium environment makes it an indispensable choice for anyone committed to achieving superior water quality in their reef or freshwater setup.