The Hagen A285 is a power filter system for the following:
The Marina S10 Power Filter System - A285 is for use with aquariums up to 10 gallons in size. The Aquarium Power Filter features a compact and slim design that takes up less space behind your aquarium, and includes an adjustable flow control for maintaning water flow levels. This aquarium filter system includes a Bio-Carb and Bio-Clear filter with Ceramitek for biological filtration, which results in a healthy and clear aquarium.
Marina S10 Power Filter System - A285 specifications: