API SUPERCLEAN 10 INTERNAL POWER FILTER Aquarium Internal Filter 1-Count Contains one (1) API SUPERCLEAN 10 INTERNAL POWER FILTER Aquarium Internal Filter 1-Count Makes water clean and crystal clear by removing debris, odors, and colors. Cartridge changing is simple and fast. Unique outflow enhances aeration and water flow designed for aquariums up to 10 US gallons Use as a source of filtration in combination with API CRYSTAL BIO-CHEM ZORB CARTRIDGE SIZE 10.