Whisper Power Filter N408775

This external power filter is one of the best-selling filters in the U.S. Utilizing mechanical, biological, and chemical filtration, your aquarium will perform well because it is going through all the filtration cycles it needs.Mechanical filtration traps suspended particles, while activated carbon adsorbs contaminants. Biological filtration converts toxic ammonia and nitrites into nitrates. Impeller assembly snaps into the patented Wonder Tube and slides in and out of the filter for effortless cleaning. Flow control knob allows you to slow the flow rate during feeding to prevent overloading the filter with food.