You have the choice between 300 l / 600 l / two models. The filter is silent and generates no noise during operation. It is very energy efficient and durable. Effectively removes dirt from the water and keeps the water clean. In the built-in filter process, water can be atomized and enriched with oxygen. Small and durable, no maintenance required. Suitable for small aquariums, turtle aquariums and shrimp aquariums. Note: When using, the device must be immersed in water, otherwise the filter will only work. Size: AP-600L Material: ABS. Black. Plug type: Europe. Product size: AP-300L: 12.3 x 2.7 x 3.3 cm. Model: AP-300L Voltage: 220-240V Frequency: 50/60Hz Power: 4W Maximum flow: 200 liters/hour Aquarium capacity: 40 liters Power cord length: 1.5m Package includes : 1 aquarium filter. Note: Due to measurement, the size may vary slightly. Depending on the light and the screen, the color may vary slightly. Thank you for your support.