BFG1177 Features: * Filter carbon * Good for both freshwater and saltwater aquariums * Creates clear, clean, healthy water Options: * Available in 3.5 oz., 7 oz. and 14 oz. sizes Color/Finish: * Removes organic wastes, odors, colors, medications, and toxins through chemical absorption Dimensions: * 3.5 oz. Dimensions: 5.38" H x 2.75" W x 2.75" D * 7 oz. Dimensions: 9" H x 2.75" W x 2.75" D * 14 oz. Dimensions: 9" H x 3.75" W x 3.75" D