Features: Activated Carbon Block: Our cubes filter uses an advanced activated carbon block without powders or impurities, making water clarity eliminating the need for frequent changes, making aquarium maintenance a breezes. Convenient placement: Our aquarium cubes filter is designed in cubes shape and offers a unique space-saving advantage. With compression treatments to retain carbon powder, it ensures efficient filtration even after rinsing. Advanced filter system: Our aquarium cubes filter has a honey-comb structure design and has filtration and adsorption functions. It filters turbidity, such as pollutants in the aquarium water. Wide range of applications: Our aquarium cubes filter offers versatile use in airs and water purification. Keep work at better performance by changing or rinsing filter regularly; ideal for many applications. Easy to use: Turn your aquarium, water tank or horse boxes into a clean retreat with our aquarium cubes filter. Installation is easy, just place the filter near the pump inlet for optimals performance. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Size: 11.5x11x11.5cm Package List: 1x Eco-Aquarium Water Trough Purifier Cubes