Aqueon QuietFlow Aquarium Power Filter, Size 10;

Aqueon(R) QuietFlow(R) LED PRO Aquarium Power Filters are equipped with Cartridge Change Indicator. As the water level rises, due to a clogged cartridge the LED begins to flash, notifying you that it's time to change you cartridge. Also pre-loaded into each filter is a dual sided dense floss carbon cartridge and replaceable Ammonia Reducing specialty filter pad, which helps to remove harmful or toxic ammonia from water. Aqueon's patented filter design is self priming and runs quietly with a flow rate of 100 Gallons Per Hour.