Aquatop Aquatic Supplies Classic Aqua Flow Sponge Aquarium Filter Up To 25 Gal CAF-25

A simple classic and economical aquarium filter. Install with an air pump or powerhead. Suitable for high flow rates without clogging. Less maintenance than traditional filters. Easy and fast to clean. Longer lasting and more durable. L x W x H: 3.3 x 3.3 x 4.2