A597 Size: 20 Gallon - 1.5 oz. Features: -Filter. -Exclusively designed for use in the AquaClear Power Filter. -Broad spectrum organic compound removal. -Suitable for freshwater or marine aquariums. Product Type: -Chemical. Pet Category: -Fish. Color: -Blacks & Grays. Generic Dimensions: -20 3.3'' H x 0.4'' W x 1.9'' D. -30 4.8'' H x 2.8'' W x 1.8'' D. -50 5'' H x 2.7'' W x 1.7'' D. -70 5.5'' H x 3.7'' W x 2.2'' D.